Question 469: Current Electricity

Question

The voltage across the 10$$\Omega$$ resistor in the given circuit is x volt.The value of 'x' to the nearest integer is _________.

Accepted Answer

$${R_{eq}} = {{50 	imes 20} \over {50 + 20}}$$
$${R_{eq}} = {{1000} \over {70}} = {{100} \over 7}\Omega $$
$${R_{ef}} = 10 + {{100} \over 7} = {{170} \over 7}\Omega $$
$$I = {V \over R} = {{170/7} \over {170}} = {{170} \over {170/7}}$$
I = 7A
Potential Across 10$$\Omega$$ resister
V
10
= IR = 7 $$	imes$$ 10 = 70V
$$ \Rightarrow $$ V
10
= 70V

Current Electricity

The voltage across the 10$\Omega$ resistor in the given circuit is x volt.The value of 'x' to the nearest integer is _________.

Choose the correct answer: