Question

3. The resistors R1, R2, R3, connected in parallel have the value 5ohm,10ohm, 30ohm respectively which have
been connected to a battery of 12V, calculate.
(a) Current through each resistor
(b) The total current in the circuit
(c) The total circuit resistance​

Answer 1

V=12V

R1, R2 and R3  are connected in parallel.

(a) Current through R1 = V/R1 = 12/5 = 2.4 A

    Current through R2 = V/R2 = 12/10 = 1.2 A

    Current through R3 = V/R2 = 12/30 = 0.4 A

(b) Total current in the circuit = 2.4 + 1.2 + 0.4 = 4 A

(c)  Total resistance in the circuit=R

       1/R = 1/R1+ 1/R2 + 1/R

   1/R = 1/5 + 1/10 + 1/30            

    1/R = 10/30

    R = 3 ohm

Answer 2

Step-by-step explanation:

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