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

• 1. 3
• 2. 4
• 3. 6
• 4. 7

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

• 1. 10 W
• 2. 20 W
• 3. 40 W
• 4. 60 W

Question: A thermistor has_____________?

• 1. positive temperature coefficient
• 2. negative temperature coefficient
• 3. zero temperature coefficient
• 4. variable temperature coefficient

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

• 1. I2Rt
• 2. I2Rf
• 3. I2R2t
• 4. I2R2t*

Question: Nichrome wire is an alloy of_____________?

• 1. lead and zinc
• 2. chromium and vanadium
• 3. nickel and chromium
• 4. copper and silver

Question: 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___________?

• 1. 1 n-mho
• 2. 106 mho
• 3. 1 milli-mho
• 4. none of the above

Question: Which of the following can have negative temperature coefficient _____________?

• 1. Compounds of silver
• 2. Liquid metals
• 3. Metallic alloys
• 4. Electrolytes

Question: Conductance : mho :: ____________?

• 1. resistance : ohm
• 2. capacitance : henry
• 3. inductance : farad
• 4. lumen : steradian

Question: 1 angstrom is equal to______________?

• 1. 10-8 mm
• 2. 10″6 cm
• 3. 10″10 m
• 4. 10~14 m

Question: One newton meter is same as_____________?

• 1. one watt
• 2. one joule
• 3. five joules
• 4. one joule second