a) Unity
b) Slightly more than unity
c) Zero
d) Less than unity

Ans: (b)

a) True
b) False

Ans: (a)

a) Div curl A = A
b) Div curl A = curl A
c) Div curl A = 0
d) Div curl A = curl div A

Ans: (c)

a) The magnetomotive force around a closed path is equal to the conduction current plus electric displacement through any surface bounded by the path
b) The electromotive force around a closed path is equal to the time derivative of the electric displacement through any surface bounded by the path
c) The total electric displacement through the surface enclosing a volume is not equal to total charge within the volume
d) The net magnetic flux emerging through any closed surface is zero

Ans: (d)

a) Much higher than applied voltage
b) Much less than applied voltage
c) Function of value of inductance
d) Function of L/C ratio
e) Equal to applied voltage

Ans: (e)

a) Within the poles of shoe magnet
b) At points along the axial line of the magnet
c) At point along the equatorial line of the magnet
d) At points not lying exactly on the horizontal board

Ans: (c)

a) Lying on its axial line
b) Lying on the centre of the line joining the two poles
c) Lying anywhere on its equatorial line
d) On the centre of the magnet

Ans: (c)

a) All in parallel
b) All in series
c) Two in series and third in parallel across this combination
d) Two in parallel and third in series with this combination

Ans: (d)

a) 1/2 × (10 × 20)/(10 +10) (200 + 100)² ergs
b) 1/2 × (10+20)/(10×20) (200 – 100 ) ergs
c) 1/2 × (200 - 100)² ergs
d) Zero

Ans: (d)

a) 10 KHz
b) 5 KHz
c) 100 KHz
d) 150 KHz

Ans: (c)

a) 5 KHz
b) 16 KHz
c) 10 KHz
d) 15 MHz
e) 15 Hz

Ans: (b)

a) 9.45 volts
b) 15 volts
c) 3.5 volts
d) 6 volts

Ans: (c)

a) V is proportional to I
b) I is proportional to V
c) V is proportional to IR
d) V is proportional to R

Ans: (a)

a) Proton
b) Electron
c) Photon
d) Neutron

Ans: (c)

a) 10 volts
b) 5 volts approximately
c) 15 volts
d) 7 volts

Ans: (b)

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