Question

Question 34:
(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
In the circuit diagram shown below, find :
(i) Total resistance.
(ii) Current shown by the ammeter A


Lakhmir Singh Physics Class 10

Answer 1

Answer:

R = (R₁R₂)/(R₁ + R₂)

or 1/R = 1/R₁  + 1/R₂

Explanation:

V  = I₁R₁  => I₁ = V/R₁

V = I₂R₂  => I₂ = V/R₂

I  = I₁ + I₂

=> I  = V/R₁ +  V/R₂

=> I = V ( 1/R₁  + 1/R₂)

=> 1/ ( 1/R₁  + 1/R₂)  = V/I

=> R = 1/ ( 1/R₁  + 1/R₂)

=> R = (R₁R₂)/(R₁ + R₂)

1/R = 1/R₁  + 1/R₂

Answer 2

Answer:

hence this is your answer dear. please mark me brainliest