Question 619: Current Electricity

Question

In the circuits shown below, the readings of voltmeters and the ammeters will be :

Accepted Answer

Resistance for ideal voltmeter = $$\infty $$
Resistance for ideal ammeter = 0
For 1
st
circuit,
V
1
= i
1
$$ 	imes $$ 10 = $${{10} \over {10}} 	imes 10$$ = 10 volt
For 2
nd
circuit,
10 $$\Omega $$ is in series with ideal voltmeter. Therefore it will not affect the circuit.
So, V
2
= i
2
$$ 	imes $$ 10 = $${{10} \over {10}} 	imes 10$$ = 10 volt
$$ 	herefore $$ V
1
= V
2
Hence, i
1
= i
2
= $${{10\,V} \over {10\,\Omega }}$$ = 1 A

Answer

V
1
= V
2
and i
1
= i
2

Answer

V
1
> V
2
and i
1
> i
2

Answer

V
1
> V
2
and i
1
= i
2

Answer

V
1
= V
2
and i
1
> i
2

Current Electricity

In the circuits shown below, the readings of voltmeters and the ammeters will be :

Choose the correct answer: