Quiz V3.0 Electronic & Electrical Engineering. 10 Questions.

Credits to: ReloadRon

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Q1: Which of the following equations correctly states Ohms Law?

V = I * R
I = E / R
R = E / I
All of the above are correct.
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Q2: A series DC circuit has a 100 Ohm resistor. If the applied voltage is unchanged and another 100 Ohm resistor is placed in parallel with the first resistor what will happen to the circuit current?

It will remain the same.
It will increase.
It will decrease.
None of the above since only the resistance has changed.
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Q3: If the diameter of a copper wire conductor is decreased what will the result be?

The resistance will increase
The resistance will decrease
The Inductance will decrease.
The inductance will increase.
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Q4: If the voltage applied across a 50 Ohm resistor is doubled and the current through the resistor doubles, what has happened to the resistor value?

The resistor value decreased.
The resistor value increased.
The resistor value was unchanged.
None of the above is correct.
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Q5:If a voltage of 12 volts is applied across a resistor and the current is 5 amps what is the power dissipated by the resistor?

Not enough information is provided.
60 watts.
30 watts.
2.4 ohms.
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Q6: What is the KWH (Kilo Watt Hour) usage of a 100 watt lamp if it is left on for 250 hours?

250 KWH.
25 KWH.
2.5 KWH.
100 KWH.
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Q7: Which device may be used to convert alternating current (AC) to direct current (DC)?

A Kelvin Varley bridge circuit.
A Wheatstone bridge circuit.
An oscillator.
A diode.
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Q8: If three 30 ohm resistors are placed in parallel with each other the total resistance will be?

90 ohms.
10 ohms.
120 ohms.
30 ohms.
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Q9: Resistance in a circuit may be defined as?

An aid to electron flow.
Opposition to electron flow.
Mutual inductance.
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Q10: The total resistance of resistors placed in parallel will always be?

Greater than the lowest value resistor.
Equal to the highest value resistor.
The sum of all values added together.
Less than the lowest value resistor.
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