A. free electrons
B. protons
C. neutrons
D. still under controversy
Related Mcqs:
- Production of heat due to an electric current flowing through a conductor is given by _________________?
A. Joule effect
B. Joule Thomsons effect
C. Comptons effect
D. Feed back effect - A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?
A. F=1/B
B. F=1/Bsinθ
C. F/0
D. F=1/Bcosθ - Forward current through a semi conductor diode circuit is due to____________?
A. minority carriers
B. majority carriers
C. holes
D. electron - In an angular motion, Newton’s second law of motion is_____________?
A. F=ma
B. F=τp/It
C. Στ = I α
D. All above - If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?
A. 3600C
B. 7200C
C. 1C
D. 2C - Electric current in a solid metal conductor is caused by the movement of what ?
A. Protons
B. Electrons
C. Metal atoms
D. Metal ionsSubmitted by: Ahmed Khan
- Resistance of a conductor depends upon_________________?
A. nature of conductor
B. dimension of conductor
C. physical state of the conductor
D. all of above - Resistance of a super conductor is ______________________?
A. finite
B. infinite
C. zero
D. changes with every conductor - The resistance of a conductor at absolute zero (OK) is________________?
A. zero almost
B. infinite almost
C. no prediction at all
D. may increase or decrease - The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?
A. The light emitting diodes
B. Photo diodes
C. Photo voltaic cell
D. Solar cells.
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