Problem: In the circuit at right, the battery has a voltage of 6.0 V, and the two resistors have resistance 20 Ω each.(a) What is the current in the circuit and the potential difference across the 10 Ω resistor when the switch is open?(b) When the switch is closed? 

FREE Expert Solution

Equivalent resistance for resistors in parallel for 2 resistors:

Req=R1R2R1+R2

Equivalent resistance for resistors in series:

Req=R1+R2+...+Rn

Current:

i=VR

Relabel the resistors as:

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Problem Details

In the circuit at right, the battery has a voltage of 6.0 V, and the two resistors have resistance 20 Ω each.
(a) What is the current in the circuit and the potential difference across the 10 Ω resistor when the switch is open?
(b) When the switch is closed? 

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