Resistors in Series and Parallel

If both resistors are 5Ω, are the values for the ammeter and voltmeter correct?

• yes

• no

If doubling the voltage across a resistor doubles the current through the resistor, then

• The resistor value decreased

• The resistor value did not change

• The resistor value increased

• It is impossible to determine the change in the resistor value

In a _________ circuit, the total resistance is greater than the largest resistance in the circuit.

• Series

• Parallel

• Either series or parallel

• Neither series nor parallel

The resistors are connected in parallel because the same current flows through all three resistors.

• The resistors are connected in parallel because the same current flows through all three resistors.

• The resistors are connected in parallel because different current flows through all three resistors.

• The resistors are connected in series because the same current flows through all three resistors.

• The resistors are connected in series because different current flows through all three resistors.

Two identical resistors are connected in parallel across the terminals of a battery. If you increase the resistance of one of the resistors, what happens to the current through and the voltage across the other resistor?

• The current and the voltage remain the same.

• The current decreases and the voltage remains the same.

• The current and the voltage increases.

• The current increases and the voltage remains the same.

In the series Circuit R_eq. :

• R_eq. = R₁ + R₂ + R₃

• None Of These

Answer explanation

Total Resistance (R_eq.) = Sum of the individual resistances

Total Voltage (V) = Sum of the individual voltage drops

In Parallel Ckt R_eq.

• All of these

• None of these

According to Voltage Divider Rule V₂:

Calculate the current through the 4 ohm resistor.

• 0.86 A

• 1.23 A

• 2.22 A

• 0.67 A