Conductance : mho :: ____________?

A. Resistance : ohm
B. Capacitance : henry
C. Inductance : farad
D. Lumen : steradian

Which of the following can have negative temperature coefficient _____________?

A. Compounds of silver
B. Liquid metals
C. Metallic alloys
D. Electrolytes

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

Nichrome wire is an alloy of_____________?

A. Lead and zinc
B. Chromium and vanadium
C. Nickel and chromium
D. Copper and silver

If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?

A. I2rt
B. I2rf
C. I2r2t
D. I2r2t*

A thermistor has_____________?

A. Positive temperature coefficient
B. Negative temperature coefficient
C. Zero temperature coefficient
D. Variable temperature coefficient

With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals_____________?

A. 10 w
B. 20 w
C. 40 w
D. 60 w

The number of electrons in the outer most orbit of carbon atom is___________?

A. 3
B. 4
C. 6
D. 7

The ratio of mass of proton to that of electron is nearly_____________?

A. 1840
B. 1840
C. 30
D. 4

Voltage dependent resistors are used_____________?

A. For inductive circuits
B. To supress surges
C. As heating elements
D. As current stabilizers