Question

Resistance of 8Ω , 10Ω and 12Ω are connected in

parallel to a battery of voltage 12 V. The current in 12Ω

resistor is

a) 2A

b) 1.2A

c) 1A

d) 0.8A​

Answer 1

Answer:

number 20 the correct one answer

Answer 2

Answer:

The current through 12Ω resistor is option(c) 1A.

Explanation:

Voltage drop across parallel resistors is equal.

Current across parallel resistors is inversely proportional to the resistance of the resistor.

According to the question, the current in 12Ω resistor is given as,

I₁₂ = $\frac{V}{R_{12} }$

= $\frac{12}{12}$

=1 A.

The correct answer is 1A.

The correct option is (c).

Furthermore, the current across 8Ω resistor is

I₈ =$\frac{V}{R_{8} }$

=$\frac{12}{8}$

=1.5 A

The current across 10Ω resistor is

I₁₀ =$\frac{V}{R_{10} }$

=$\frac{12}{10}$

=1.2 A