DC Series Parallel Circuits

The voltages in the parallel section of a series-parallel circuit ?

• a. are affected by the circuit equivalent resistance

• b. are difficult to determine

• c. are the same across the parallel components

• d. decrease through the circuit from component to component

If one resistor in the parallel section of a series-parallel circuit goes open circuit, the circuit power dissipation will ?

• a. remain constant.

• b. decrease.

• . c. increase.

• d. decrease to zero.

The power dissipation of any circuit ?

• a. equal to the sum of the power dissipation of each resistor.

• b. equal to the product of the power dissipation of each resistor.

• c. equal to the supply voltage squared times the circuit equivalent resistance.

• d. depends on the circuit arrangement.   

In the circuit of figure 1, the supply current is equal to the ?

• a. value of branch currents.

• b. product of the branch currents.

• c. sum of the currents in each resistor.

• d. sum of the branch currents

If the resistor R1 in the circuit of figure 1 were to open circuit, the circuit current would ?

• a. remain unchanged.

• b. decrease.

• c. increase.

• d. become zero.

If the resistor R3 in the circuit of figure 1 were to short circuit, the circuit current would:

?

• a. remain unchanged.

• b. decrease.

• c. increase.

• d. become zero.

If the resistor R2 in the circuit of figure 1 were to open circuit, the circuit power dissipation would ?

• a. remain unchanged.

• b. decrease.

• c. increase.

• d. become zero.

If resistor R1 in the circuit of figure 1 was short circuited, the circuit power dissipation would ?

• a. remain unchanged.

• b. decrease.

• c. increase.

• d. become zero.

If an extra resistor was added in parallel with resistors R2 and R3 in the circuit of figure 1, the equivalent circuit resistance would ?

• a. increase.

• b. decrease to zero.

• c. decrease to a lower value.

• d. increase to a much higher value.

If the resistance of the resistor R1 in the circuit of figure 1 was to be increased, the equivalent resistance of the circuit would ?

• a. increase.

• b. decrease to zero.

• c. decrease to a lower value.

• d. increase to a much higher value.