Question

29. In the figure calculate the total electric current flowing in the circuit.
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Answer 1

Answer:

27.5 ohms

Explanation:

Given:

• A resistor of resistance 10 ohms and other resistor of 40 ohms are connected in parallel

To find:

• Total electrical current in the circuit

First we will have to find the equivalent resistance :

When two resistors are in parallel:

1/req = 1/r1 + 1/r2

1/req = 1/10 + 1/40

1/req = (4+1)/40

1/req = 5/40

req = 40/5 = 8 ohms

The equivalent resistance is equal to 8 ohms

Here the potential difference is not given, so I am assuming v = 220v

V=ir

220 = I ×8

I = 27.5 A

Depending on your voltage current can be found with ohms law