A. 0.625 × 1019
B. 1.6 × 1019
C. 1.6 × 10-19
D. 0.625 × 10-19
The charge of one electron is 1.6 × 10 – 19 coulomb. Again 1 A current means transferring of 1 coulomb charge per one second.
Related Mcqs:
- When a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is___________?
A. 1 n-mho
B. 106 mho
C. 1 milli-mho
D. none of the above - For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than_____________?
A. 10 IB
B. 3 IB
C. 2 IB
D. 4 IB - The current flowing through an unloaded voltage divider is called the____________?
A. bleeder current
B. load current
C. resistor current
D. voltage current - When current flows through heater coil it glows but supply wiring does not glow because______________?
A. current through supply line flows at slower speed
B. supply wiring is covered with insulation layer
C. resistance of heater coil is more than the supply wires
D. supply wires are made of superior material - If a transistor is operated in such a way that output current flows for 60o of the input signal, then it is ______________ operation?
A. Class A
B. Class B
C. Class C
D. None of the above - The substances which have a large number of free electrons and offer a low resistance are called____?
A. insulators
B. inductors
C. semi-conductors
D. conductors - The number of electrons in the outer most orbit of carbon atom is___________?
A. 3
B. 4
C. 6
D. 7 - A pentavalent impurity has______________Valence electrons?
A. 3
B. 5
C. 4
D. 6 - A trivalent impurity has______________valence electrons?
A. 4
B. 5
C. 6
D. 3 - The number of electrons in one coulomb charge is equal to_______________?
A. 6.2 x 1018
B. 1.6 x 1019
C. 6.2 x 1021
D. 1.6 x 10-27