A. 4 volt
B. 5 volt
C. 2 volt
D. 0.4 volt
Electromagnetism
Electromagnetism
A. weaken it
B. strengthen it
C. reverse its polarity
D. demagnetize it completely
A. very low damping
B. very high damping
C. no damping at all
D. radial field disintegration
A. a straight line parallel to the field
B. a parabola in a plane perpendicular to the field
C. a circle in a plane perpendicular to the field
D. a straight line along its initial direction
A. use a very long and fine suspension
B. use a coil of very large area
C. use a coil with very large number of turns
D. use a very strong magnetic field
A. in series with the circuit
B. in parallel with circuit
C. in series with any of the parallel resistances in the circuit
D. in parallel with any of the series resistances in the circuit
A. a most sensitive galvanometer is used
B. a steady voltage cell is used
C. the balance point is close to the middle of the wire
D. a high resistance box is used in one of its gap
A. 0.1 A
B. 1:00 AM
C. current sensitivity
D. 1 m A
A. C/BAN
B. CAN/B
C. BAN/C
D. ABC/N
A. 18Ω
B. 30Ω
C. 24Ω
D. 12Ω
