1. Two identical 5 resistors and a 10 resistor are connected in a circuit. Which of the following cannot be the effective resistance of these

1.

Two identical 5Ω resistors and a 10Ω resistor are connected in a circuit. Which of the following cannot be the effective resistance of these resistors?

a. 20 Ω

b. 12.5 Ω

c. 8.3 Ω

d. 17.5 Ω

2.

Which of the following circuits will take longer to achieve a steady state condition?

Circuit 1: 1 F capacitor, 5 v battery, 10 Ω resistor

Circuit 2: 5 F capacitor, 5 v battery, 1 Ω resistor

Circuit 3: 2 F capacitor, 1 v battery, 10 Ω resistor

a. Circuit 1

b. Circuit 2

c. Circuit 3

d. Circuits 1 and 2 take the longest to reach steady state

3.

Consider the following circuits:

Circuit 1: A 10 v battery in series with two 10 Ω resistors

Circuit 2: Two 10 v batteries in series with three 10 Ω resistors

Circuit 3: Three 10 v batteries in series with two 10 Ω resistors

Circuit 4: A 10 v battery connected to two 10 Ω resistors that are in parallel

Circuit 5: Two 10 v batteries in parallel with each other in series with two 10 Ω resistors

Which of the circuits above would have the same current through each resistor as the current in a circuit containing a single 10 v battery and a 10 Ω resistor?

a. Circuit 1

b. Circuit 2

c. Circuit 3

d. Circuit 4

e. Circuit 5