CUET LEVEL II NEET MOCK TEST - 3 (PHYSICS)

A circular coil is placed near a straight conductor as shown below. When the current in the straight conductor increases, the current in the coil is

• clockwise

• anticlockwise

• normal to the plane oi coil

• None of them.

Which of the following gives the direction of the induced e.m.f.?

• Faraday’s law
  

• Lenz’s law

• Ampere

• Biot-Savart’s law

Which of the following is based on the law of conservation of energy?

• Faraday’s law
  

• Lenz’s law

• Ampere

• Biot-Savart’s law

The electric current in a circuit varies from + 2A to – 2A in a time 10^-2 s. Another coil of resistance 20 Ω and inductance 2H is placed here it. What will be the induced current in the second coil?

• 4A

• 8A

• 20A

• 40A

The motional e.m.f. is the induced e.m.f.

• in a circuit due to variation in its own current.
  

• in a circuit due to variation of current in the neighbouring circuit.

  
  

• across the ends of a wire moving in a magnetic field.

• in a coil due to the motion of the magnet near it.

A car moves up on a plane road. The induced e.m.f. in the axle connecting the two wheels is maximum, when it moves:

• At the poles

• At equator

• remains stationary

• No e.m.f. is induced at all

When the current through a solenoid increases at a constant rate, the induced current:

• is a constant and is in the direction of inducing current

• is a constant and is opposite to the direction of the inducing current.

• increases with time and is in the direction of the inducing current.

• increases with time and is opposite to the direction of the inducing current

Which of the following is/are equal to Henry?

• Volt second/ampere

• Volt(second)²/coulomb

• Joule (second)²/(coulomb)²
  

• All of these

A coil of metal wire is kept stationary in a non-uniform magnetic field:

• An e.m.f. and current both are induced in the coil.

• An e.m.f. but not the current is induced iii the coil.

• Current but not the e.m.f is induced in the coil.

• Neither e.m.f. nor current is induced in the coil.

Induced e.m.f. produced in a coil rotating in a magnetic field will be maximum when the angle between the axis of coil and direction of magnetic field is:

• 90°

• 45°

• 0°

• 180°