NUE 052 Practice Test 2
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| 1.
Which one of the following materials is an insulator? 2. Which
of the following examples is NOT a method of producing an EMF?
3. Opposition
to current flow is explained as:
4. In a circuit where the voltage is constant and the resistance is halved, the current will? 5. Current flowing in a circuit is measured at 475mA. It can also be written as: 6. What
is the ratio of power consumed if the voltage across a resistor
is doubled?
7. What is a unit of electrical power? 8. To measure voltage it must be connected: 9. A
meter used to measure resistance is a:
10. The cables connected to a 150 ohm resistor are carrying 10 amps. What is the supply voltage? 11.
What is the power consumed in a circuit with a supply voltage of
230 volts and a current of 3 amps?
12.
Which of the following is NOT an effect of electric current?
13.
A circuit with a 230 volt supply has a 1510 watt clothes dryer,
2.3 kW heater and one 100 watt lamp connected. What is the current
draw?
14.
Which of the following wattmeter circuits is correct?
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