# Series-Parallel Circuits MCQs

• A. 10 ohms
• B. 20 ohms
• C. 45 ohms
• D. 90 ohms

## If a Wheatstone bridge is balanced, a voltmeter in the center of the bridge will read:

• A. the same as the source voltage
• B. half the source voltage
• C. zero volts
• D. twice the source voltage

## If four 10 k resistors are in series with a single 20 k resistor and one of the parallel resistors shorts, the voltage across the other parallel resistors ________.

• A. increases
• B. decreases
• C. remains the same
• D. drops to zero

## If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?

• A. increases
• B. decreases
• C. remains the same
• D. cannot tell

## In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2’s voltage will:

• A. increase
• B. decrease
• C. remain the same
• D. cannot tell

## Series components in a series–parallel circuit may be in series with other _______________ components, or with other _______________ components.

• A. individual, combinations of
• B. series, parallel
• C. parallel, series
• D. shunt, parallel

## The current flowing through an unloaded voltage divider is called the:

• A. resistor current
• C. bleeder current
• D. voltage current

• A. 4 k
• B. 17 k
• C. 41 k
• D. 108 k

## When a load is connected to a voltage divider, the total resistance of the circuit will:

• A. decrease
• B. double
• C. increase
• D. remain the same

• A. 200 mA
• B. 800 mA
• C. 600 mA
• D. 400 mA