IICS-ELECTRICITY-01

In the circuit on the right, the two lamps are of different size and brightnesses. How much potential energy does each coulomb have as it leaves the battery?

• 2 J

• 4 J

• 8 J

• 12 J

In the circuit above, the two lamps are of different sizes and brightnesses. What is the reading on meter Y?

• 2 V

• 4 V

• 8 V

• 12 V

In the circuit above, the two lamps are of different sizes and brightnesses. How much potential energy is lost by each coulomb passing through lamp A?

• 2 J

• 4 J

• 8 J

• 12 J

In the circuit above, how much charge passes through A every second?

• 2 C

• 4 C

• 8 C

• 12 C

In the circuit above, how much energy is radiated from A every second?

• 4 J

• 8 J

• 12 J

• 16 J

In the circuit above, the two lamps are of different sizes and brightnesses. How much energy is radiated from B every second?

• 4 J

• 8 J

• 12 J

• 16 J

A resistor has a steady resistance of 8 Ω. If the current in the resistor is 2 A, what is the p.d. across it?

• 2 V

• 4 V

• 8 V

• 16 V

A resistor has a steady resistance of 10 Ω. What p.d. is needed to produce a current of 4 A?

• 0,4 V

• 2,5 V

• 4 V

• 40 V

The graph lines A and B on the picture are for 2 different conductor. Which conductor has the higher resistance?

• A

• B

Wire A has a resistance of 12 Ω. If wire B is twice the length of A and twice the diameter, what is its resistance?

• 2 Ω

• 4 Ω

• 6 Ω

• 8 Ω