Unit 15 Electromagnetism Physics 10th Class Punjab MCQ Tests
10th Class Physics Unit 15 MCQ Tests
Unit 15 of 10th Class Physics has 30 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 30
Total Marks: 30
Time: 30 Mins
Total Questions: 30
Total Marks: 30
Time: 30 Mins
30Min : 00 Sec Remaining
Question # 1
By accelerating magnet inside coil, what will happen to the current in it?
Question # 2
Which of the following should be increased in order to increase the induced emf in a conductor due to relative motion of conductor and magnet?
Question # 3
In transformer the changing current in primary coil induces changing magnetic field in
Question # 4
In a D.C motor the coil in a magnet rotates maximum to about
Question # 5
Calculate the current flowing through a conductor of length 1.5 m when it is placed in a magnetic field of strength 0.7 T, where the magnetic field is at right angle to the conductor length. The force on the conductor due to the field is 8 N.
Question # 6
The information of users which are read by the ATM machines are stored on
Question # 7
If the secondary voltage is larger than the primary voltage, the transformer is called a
Question # 8
The two forces which are equal in magnitude but opposite in direction form a
Question # 9
Which of the following phenomena is used by a transformer for its working?
Question # 10
Which of the following devices can be used to measure the induced emf across a conductor when magnetic flux across that conductor changes continuously?
Question # 11
Which of the following has same pattern of magnetic field lines as that of a bar magnet?
Question # 12
Which of the following causes induction of current in a conductor in a magnetic field?
Question # 13
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the magnetic field strength is increased to 4B.
Question # 14
What will happen to the magnetic field of the solenoid if the current through the solenoid is increased?
Question # 15
Two straight wires carrying direct currents flowing in opposite direction to each other, are brought close together. What will happen to the wires?
Question # 16
Which winding of transformer has more number of turns?
Question # 17
The force on the wire is at right angles to both the direction on the magnetic field and the direction of the current. This is discovered by
Question # 18
The primary coil of a transformer has 500 turns and secondary coil of transformer has 800 turns. What type of transformer is it?
Question # 19
The production of induced current in one coil due to production of current in neighboring coil is
Question # 20
Electric motors works on the principle of
Question # 21
A wire is placed in a magnetic field. The current in the wire is from left to right and the magnetic field is in upward direction. What will be the direction of magnetic force on the wire?
Question # 22
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the current is increased to 2I.
Question # 23
To control a large current with the help of a small current, we use the
Question # 24
A moving coil galvanometer of resistance 100 ohm gives half scale deflection for a current of 20mA. What will be the potential difference across it?
Question # 25
An electric current flows into the page. What is the direction of the magnetic field?
Question # 26
The primary coil of a transformer has 500 turns and secondary coil of transformer has 200 turns. What type of transformer is it?
Question # 27
A transformer has 10000 turns of primary and 200 turns of secondary coil. If 600 V is applied on its primary, what will be the voltage at the secondary?
Question # 28
Magnitude of induced EMF depends on which of the following factors?
Question # 29
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the length of wire is increased to 3L while the current is same?
Question # 30
Magnetic field can be produced by using which of the following?
Total Questions
123456789101112131415161718192021222324252627282930
Question # 1
By accelerating magnet inside coil, what will happen to the current in it?
Question # 2
Which of the following should be increased in order to increase the induced emf in a conductor due to relative motion of conductor and magnet?
Question # 3
In transformer the changing current in primary coil induces changing magnetic field in
Question # 4
In a D.C motor the coil in a magnet rotates maximum to about
Question # 5
Calculate the current flowing through a conductor of length 1.5 m when it is placed in a magnetic field of strength 0.7 T, where the magnetic field is at right angle to the conductor length. The force on the conductor due to the field is 8 N.
Question # 6
The information of users which are read by the ATM machines are stored on
Question # 7
If the secondary voltage is larger than the primary voltage, the transformer is called a
Question # 8
The two forces which are equal in magnitude but opposite in direction form a
Question # 9
Which of the following phenomena is used by a transformer for its working?
Question # 10
Which of the following devices can be used to measure the induced emf across a conductor when magnetic flux across that conductor changes continuously?
Question # 11
Which of the following has same pattern of magnetic field lines as that of a bar magnet?
Question # 12
Which of the following causes induction of current in a conductor in a magnetic field?
Question # 13
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the magnetic field strength is increased to 4B.
Question # 14
What will happen to the magnetic field of the solenoid if the current through the solenoid is increased?
Question # 15
Two straight wires carrying direct currents flowing in opposite direction to each other, are brought close together. What will happen to the wires?
Question # 16
Which winding of transformer has more number of turns?
Question # 17
The force on the wire is at right angles to both the direction on the magnetic field and the direction of the current. This is discovered by
Question # 18
The primary coil of a transformer has 500 turns and secondary coil of transformer has 800 turns. What type of transformer is it?
Question # 19
The production of induced current in one coil due to production of current in neighboring coil is
Question # 20
Electric motors works on the principle of
Question # 21
A wire is placed in a magnetic field. The current in the wire is from left to right and the magnetic field is in upward direction. What will be the direction of magnetic force on the wire?
Question # 22
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the current is increased to 2I.
Question # 23
To control a large current with the help of a small current, we use the
Question # 24
A moving coil galvanometer of resistance 100 ohm gives half scale deflection for a current of 20mA. What will be the potential difference across it?
Question # 25
An electric current flows into the page. What is the direction of the magnetic field?
Question # 26
The primary coil of a transformer has 500 turns and secondary coil of transformer has 200 turns. What type of transformer is it?
Question # 27
A transformer has 10000 turns of primary and 200 turns of secondary coil. If 600 V is applied on its primary, what will be the voltage at the secondary?
Question # 28
Magnitude of induced EMF depends on which of the following factors?
Question # 29
The force acting on a wire of length L, carrying a current I at right angle to a magnetic field of strength B, is F. What is the force if the length of wire is increased to 3L while the current is same?
Question # 30
Magnetic field can be produced by using which of the following?
Total Questions
123456789101112131415161718192021222324252627282930
Physics MCQ Test by Topics
- +15.1 MAGNETIC EFFECTS OF A STEADY CURRENT
- +15.1 Direction of magnetic field
- +15.1 Magnetic field of a solenoid
- +15.2 F O R C E O N A C U R R E N T - C A R R Y I N G CONDUCTOR PLACED IN A MAGNETIC FIELD
- +15.2 Determining the direction of force
- +15.3 TURNING EFFECT ON A CURRENTCARRYING COIL IN A MAGNETIC FILED
- +15.4 D. C. MOTOR
- +15.5 ELECTROMAGNETIC INDUCTION
- +15.6 Direction of induced e.m.f. – Lenz’s Law
- +15.7 A.C. GENERATOR
- +15.7 Current from a generator
- +15.8 MUTUAL INDUCTION
- +15.9 TRANSFORMER
- +15.9 Working of a transformer
- +15.10 HIGH VOLTAGE TRANSMISSION
- +15.10 Applications of Electromagnet
Physics
10th Class Online Classes 2026
Updated on: 17-05-2026
10th Class Online Preparation
10th Class 2026 Online
10th Class 2026
Add a Comment
Comments will be shown after admin approval.
Spam comments will not be approved at all.
Matric Result 2026 Punjab
10th Class Result 2026 Punjab
9th Class Result 2026 Punjab Boards
10th Class Result Gazette 2026 Punjab
Punjab Past Papers Matric 9th 10th
Primary Results 5th & 8th Class
BISE Results Intermediate & Matric
BISE Punjab Boards
Sindh Educational Boards
KPK Examination Boards
Technical Boards
Public Service Commission
University Results Gruaduation, Masters Classes
Subscribe by Email
Subscribe by Email
Subscribe to Rss Feed
Position Holders Matric 2026
Position Holders 9th Class 2026
Position Holders Inter 2026
Position Holders 11th Class 2026
Punjab 10th Class Physics