An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be
A. 64 A/s
B. 32 A/s
C. 16 A/s
D. 4 A/s
Answer: Option D
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Related Questions on Electromagnetic Induction
A. Self-inductance
B. Mutual inductance
C. Series aiding inductance
D. Capacitance
Which circuit element(s) will oppose the change in circuit current?
A. Resistance only
B. Inductance only
C. Capacitance only
D. Inductance and capacitance
Which of the following circuit elements will oppose the change in circuit current?
A. Capacitance
B. Inductance
C. Resistance
D. All of the above
A. 2.0
B. 1.0
C. 0.5
D. Zero
Formula...
emf = L(dI/dt)
di/dt = emf/L = 16/4
I=v/XL
I=16/4
I=4