1. Equivalent Resistance

1. What is equivalent resistance in a circuit?

The total resistance experienced by current in the circuit
The resistance of the largest resistor in the circuit
The resistance measured across the source only
The sum of all resistances in parallel

2. How is the equivalent resistance calculated for resistors connected in series?

By adding their reciprocals
By adding their values directly
By multiplying their values
By taking the square root of the sum

3. What is the equivalent resistance of two 4Ω resistors connected in parallel?

2Ω
4Ω
8Ω
16Ω

4. If three resistors of 5Ω, 10Ω, and 15Ω are connected in series, what is the equivalent resistance?

30Ω
5Ω
10Ω
15Ω

5. For resistors connected in parallel, the equivalent resistance is always:

Greater than the largest resistor
Equal to the largest resistor
Less than the smallest resistor
Equal to the smallest resistor

6. What is the equivalent resistance of two resistors, 6Ω and 3Ω, connected in parallel?

9Ω
2Ω
3Ω
1Ω

7. How does adding more resistors in parallel affect the equivalent resistance?

It increases
It decreases
It remains the same
It doubles

8. If 50 resistors are connected in parallel each of 2500 ohm, what will be the equivalent resistance?

20 ohm
40 ohm
50 ohm
60 ohm

9. If two resistors of 12Ω and 6Ω are connected in series, what is their equivalent resistance?

18Ω
6Ω
12Ω
72Ω

10. What happens to the equivalent resistance if a short circuit occurs in a parallel resistor network?

It becomes infinite
It becomes zero
It equals the largest resistor
It equals the smallest resistor