Electromagnetism Set 3

Results

#1. The units of magnetic field B, in system international is:

Weber

Tesla

Gauss

Newton

#2. One tesla (T) is:

1T = 1NA * m ^ - 1

1T = 1N * A ^ - 1 * m ^ - 1

1T = 1NAm

1T = 1Nm * A ^ - 1

#3. The magnetic flux through an area "A" is:

Flux = B*A

Flux= B .A

Flux = A*B

None of these

#4. When a small resistance is connected parallel to the galvanometer, the resulting circuit behaves as: a) b) c) d)

Voltmeter

Wheatstone bridge

Ammeter

Potentiometer

#5. The anode in the CRO is:

Control number of electrons

Control the brightness of spot formed

Accelerates and focus the beam

At negative potential with respect to cathode

#6. The galvanometer constant in a moving coil galvanometer a given by: a) b) K c) d)

K = (NB)/ (CA)

K=C/NAB

K = NAB/C

K = CA/NB

#7. One Tesla is also equal to:

wb .m^ 2

wb.m-2

wb.m

None

#8. Torque on a current carrying coil in:

BINA cos a

BINA sin a

BIL cos a

BIL sin a

#9. The magnetic force is simply a:

Reflecting force

Deflecting force

Restoring force

Gravitational force

#10. The galvanometer can be made sensitive if the value of the C/ (BNA) is:

made large

Made small

Remains constant

Infinite

Finish