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

Byju's Answer

Standard XII

Physics

Parallel Combination of Cells

Two batteries...

Question

Two batteries, one of emf 18 volts and internal resistance 2 $Ω$ and the other of emf 12 volt and internal resistance 1 $Ω$ , are connected as shown.The voltmeter V will record a reading of:

18

volt

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

30

volt

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

14

volt

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

15

volt

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

Open in App

Solution

The correct option is C $14$ volt
Since, the batteries are connected in parallel,
$V = \frac{E_{1} r_{2} + E_{2} r_{1}}{r_{1} + r_{2}}$

$V = \frac{18 \times 1 + 12 \times 2}{1 + 2}$

$V = 14 V o l t$

Suggest Corrections

Similar questions

Q. Two batteries, one of emf

18 volts

and internal resistance

2 Ω

and the other of emf

12 volts

and internal resistance

1 Ω

, are connected as shown. The reading of the voltmeter

V

will be:

Q. Two batteries one of emf 18 volts and internal resistance 2

Ω

and the other of emf 12V and internal resistance 1

Ω

are connected as shown in figure the voltmeter V will record a reading of

Q. Two batteries of different emfs and different internal resistances are connected as shown. The voltage across

A B

in volts is

Q. A battery of emf

4

volts and internal resistance

1 Ω

is connected in parallel with another battery of emf

1

volt Combination is used to send current through an external resistance

2 Ω

. Calculate current through external resistance and potential difference across external resistance.

Q. A battery having an emf of

12

Volt and an internal resistance of

2 Ω

is connected to another battery having an emf of

18

Volt and an internal resistance of

2 Ω

in such a way that they are opposing each other and the circuit is closed. Calculate the following.

1

. Current flowing in the circuit.

2

. Electrical power in the two batteries.

3

.Terminal voltage of the two batteries.

4

. Electric power consumed in the batteries.

Join BYJU'S Learning Program

Two batteries, one of emf 18 volts and internal resistance 2Ω and the other of emf 12 volt and internal resistance 1Ω, are connected as shown.The voltmeter V will record a reading of:

The correct option is C 14 voltSince, the batteries are connected in parallel,V=E1r2+E2r1r1+r2V=18×1+12×21+2V=14Volt

Two batteries, one of emf 18 volts and internal resistance 2 $Ω$ and the other of emf 12 volt and internal resistance 1 $Ω$ , are connected as shown.The voltmeter V will record a reading of:

The correct option is C $14$ volt
Since, the batteries are connected in parallel,
$V = \frac{E_{1} r_{2} + E_{2} r_{1}}{r_{1} + r_{2}}$

$V = \frac{18 \times 1 + 12 \times 2}{1 + 2}$

$V = 14 V o l t$