Question

find current in the circuit​

Answer 1

Answer:

7.5 A

Explanation:

Step 1, add all the potential difference

30v + 10v + 20v + 15v = 75v

Now, the connection formed is in series combination and in series combination Resistance is given by

R = R1 + R2 + R3 + R4..........

R = 3 + 2 + 4 + 1

Total R = 10 ohm

Now, according to Ohm's Law

V = IR

I = V/R

I = 75/10

I = 7.5 A

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