The inductance and energy stored in joules in the magnetic field of the solenoid having length 30 cm and diameter 3 cm and wound with 1000 turns of wire when carrying a current of 10 Amp.
A. 0.003 mH and 0.15 joules
B. 3 mH and 0.15 joules
C. 8 mH and 0.15 joules
D. 0.003 mH and 0.015 joules
Answer: Option B
Related Questions on Electromagnetic Field Theory
A loop antenna is a commonly used for
A. Radar
B. Direction finding
C. Satellite communication
D. All of the above
The divergence of a vector is a scalar, while the curl of a vector is another
A. Scalar
B. Vector
C. Unit vector
D. None of the above
Which antenna is a wideband antenna?
A. Hertz antenna
B. Marconi antenna
C. Folded dipole
D. None of the above
A. Accelerating
B. Retardation
C. Oscillating
D. Lagging the current

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