four resistor of 3ohm, 5ohm,7ohm,and10ohm are connected in series to 10 v battery. calculate the current in 5ohm resistor.

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Solution

Dear student,
The four resistors are connected in series, so, Req=R1+R2+R3+R4
Req=3+5+7+10=25 ohms.
Voltage of the battery=10V
So, current flowing in the circuit, I = V/R
I=10/25
I=0.4A
Since, all the resistors are connected in series, so the same current will flow through each and every resistors.Hence, current through 5 ohm resistor will also be 0.4A
Regards

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