In an electric circuit- two resistors of 2- and 4- are connected in series with a 12 V battery-Find out the voltage across the 4- resistor -

The correct option is D 8 VGiven : #160; #160; R_1 = 2Ω #160; #160; #160; #160; #160; #160; #160; #160; #160; #160; ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VIII

Physics

Domestic Electric Circuits

In an electri...

Question

In an electric circuit, two resistors of $2 Ω$ and $4 Ω$ are connected in series with a 12 V battery.
Find out the voltage across the $4 Ω$ resistor ?

3 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

6 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

8 V

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

12 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 8 V
Given : $R_{1} = 2 Ω$ $R_{2} = 4 Ω$
Total resistance of the circuit $R = R_{1} + R_{2} = 2 + 4 = 6 Ω$
Voltage drop across $4 Ω$ , $V_{4} = \frac{R_{2}}{R} V = \frac{4}{6} \times 12 = 8$ volts

Suggest Corrections

Similar questions

Q. In an electrical circuit two resistors of 2

Ω

and 4

Ω

respectively are connected in series to a 6 V battery. The heat dissipated by the 4

Ω

resistor in 5 s will be:

Q. A battery of emf

12 V

and internal resistance

2 Ω

is connected with two resistors A and B of resistance

4 Ω

and

6 Ω

respectively joined in series.
Find:
(i) Current in the circuit.
(ii) The terminal voltage of the cell.
(iii) The potential difference across

6 Ω

Resistor.
(iv) Electrical energy spent per minute in

4 Ω

Resistor.

Q. Question 15
In an electrical circuit two resistors of 2

Ω

and 4

Ω

respectively are connected in series to a 6 V battery. The heat dissipated by the 4

Ω

resistor in 5 s will be

(a) 5 J
(b) 10 J
(c) 20 J
(d) 30 J

Question 22
Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 $Ω$ in series with a combination of two resistors (4 $Ω$ each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 $Ω$ resistors be the same as that across the parallel combination of 4 $Ω$ resistors? Give reason.

Three resistors $2 Ω, 3 Ω$ and $4 Ω$ are connected in series in a circuit. The total resistance of the circuit is

Join BYJU'S Learning Program

In an electric circuit, two resistors of 2Ω and 4Ω are connected in series with a 12 V battery.Find out the voltage across the 4Ω resistor ?

The correct option is D 8 VGiven : R1=2Ω R2=4ΩTotal resistance of the circuit R=R1+R2=2+4=6ΩVoltage drop across 4Ω, V4=R2RV=46×12=8 volts

In an electric circuit, two resistors of $2 Ω$ and $4 Ω$ are connected in series with a 12 V battery.
Find out the voltage across the $4 Ω$ resistor ?

The correct option is D 8 V
Given : $R_{1} = 2 Ω$ $R_{2} = 4 Ω$
Total resistance of the circuit $R = R_{1} + R_{2} = 2 + 4 = 6 Ω$
Voltage drop across $4 Ω$ , $V_{4} = \frac{R_{2}}{R} V = \frac{4}{6} \times 12 = 8$ volts