i can\'t post the image so I will describe the circuit: there is a circuit in wh

Question

i can't post the image so I will describe the circuit: there is a circuit in which r2 and r1 are in series with each other, r3 is in parallel with r2, there is a switch directly next to r2. When the switch is open what happens to the resistance of r3? When the switch is open what happens to the current of r3? When the switch is open what happens to the voltage of r1? When the switch is open what happens to the resistance of r1? When the switch is open what happens to the voltage of r2? When the switch is open what happens to the resistance of r2? Please provide an explanation

Explanation / Answer

1) when the switch is open R3 comes directly in series with R1 (R2 is removed from circuit) 2) current through R3 after switch closed is V/(R1+R3) 3) Voltage across R1 becomesVR1/(R1 +R3) 4) R1 remains same 5)voltage across R2 is o. 6) resistance of R2 will not change but it is not in the circuit

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