Unit 15 Array 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
Which of the following causes induction of current in a conductor in a magnetic field?
Question # 2
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 # 3
Magnitude of induced EMF depends on which of the following factors?
Question # 4
To control a large current with the help of a small current, we use the
Question # 5
If the secondary voltage is larger than the primary voltage, the transformer is called a
Question # 6
Which of the following has same pattern of magnetic field lines as that of a bar magnet?
Question # 7
In transformer the changing current in primary coil induces changing magnetic field in
Question # 8
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 # 9
The production of induced current in one coil due to production of current in neighboring coil is
Question # 10
The two forces which are equal in magnitude but opposite in direction form a
Question # 11
The primary coil of a transformer has 500 turns and secondary coil of transformer has 800 turns. What type of transformer is it?
Question # 12
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 # 13
By accelerating magnet inside coil, what will happen to the current in it?
Question # 14
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 # 15
Which winding of transformer has more number of turns?
Question # 16
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 # 17
In a D.C motor the coil in a magnet rotates maximum to about
Question # 18
Magnetic field can be produced by using which of the following?
Question # 19
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 # 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
An electric current flows into the page. What is the direction of the magnetic field?
Question # 23
Two straight wires carrying direct currents flowing in opposite direction to each other, are brought close together. What will happen to the wires?
Question # 24
Which of the following phenomena is used by a transformer for its working?
Question # 25
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 # 26
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 # 27
The primary coil of a transformer has 500 turns and secondary coil of transformer has 200 turns. What type of transformer is it?
Question # 28
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 # 29
What will happen to the magnetic field of the solenoid if the current through the solenoid is increased?
Question # 30
The information of users which are read by the ATM machines are stored on
Total Questions
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Question # 1
Which of the following causes induction of current in a conductor in a magnetic field?
Question # 2
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 # 3
Magnitude of induced EMF depends on which of the following factors?
Question # 4
To control a large current with the help of a small current, we use the
Question # 5
If the secondary voltage is larger than the primary voltage, the transformer is called a
Question # 6
Which of the following has same pattern of magnetic field lines as that of a bar magnet?
Question # 7
In transformer the changing current in primary coil induces changing magnetic field in
Question # 8
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 # 9
The production of induced current in one coil due to production of current in neighboring coil is
Question # 10
The two forces which are equal in magnitude but opposite in direction form a
Question # 11
The primary coil of a transformer has 500 turns and secondary coil of transformer has 800 turns. What type of transformer is it?
Question # 12
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 # 13
By accelerating magnet inside coil, what will happen to the current in it?
Question # 14
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 # 15
Which winding of transformer has more number of turns?
Question # 16
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 # 17
In a D.C motor the coil in a magnet rotates maximum to about
Question # 18
Magnetic field can be produced by using which of the following?
Question # 19
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 # 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
An electric current flows into the page. What is the direction of the magnetic field?
Question # 23
Two straight wires carrying direct currents flowing in opposite direction to each other, are brought close together. What will happen to the wires?
Question # 24
Which of the following phenomena is used by a transformer for its working?
Question # 25
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 # 26
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 # 27
The primary coil of a transformer has 500 turns and secondary coil of transformer has 200 turns. What type of transformer is it?
Question # 28
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 # 29
What will happen to the magnetic field of the solenoid if the current through the solenoid is increased?
Question # 30
The information of users which are read by the ATM machines are stored on
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
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