F03 - Nature of amateur radio / Equipment

Which of these is an abbreviation for Volts?
1. I
2. R
3. E
4. W
A thousandth of an Amp is called:
1. a Mega amp
2. a milli amp
3. a micro amp
4. A nano amp
A kilowatt is equal to
1. 10 Watts
2. 100 Watts
3. 1000 Watts
4. 1000000 Watts
If a transmitter powered from a 12 Volt supply uses 4 Amps, how much power does it use
1. 48 Watts
2. 8 Watts
3. 3 Watts
4. 1/3rd of a Watt
Resistance is the opposition to:
1. voltage flow
2. power flow
3. water flow
4. current flow
Voltage is equal to
1. current x wattage
2. wattage x resistance
3. current x resistance
4. reistance x wattage
What current will pass through a 50 Ohm resistor in series with a 100 Volt DC power supply
1. 1 Amp
2. 5000 Amps
3. 2 Amps
4. 0.5 Amps
What does a battery provide that causes current to flow through a circuit connected to the battery?
1. Current
2. A potentail difference
3. Resistance
4. Capacitance
Which of these could be damaged by connecting a battery the wrong way round?
1. A filament light bulb
2. An electric bell
3. A transistor
4. A resistor
This is the symbol for a(n)
1. Resistor
2. Fuse
3. Capacitor
4. A piece of insulated wire