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Byju's Answer

Standard IX

Physics

Circuit Diagram and Electrical Components

When a cell i...

Question

When a cell is connected in a circuit containing various electrical components, a current flows in the electrical circuit because of

emf

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the potential difference between terminals of the cell

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the internal resistance of the cell

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electrical resistance of circuit

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Solution

The correct options are
A
emf

B
the potential difference between terminals of the cell

The emf between the terminals of a cell provides energy for the charge to flow through the components joined in the circuit. Also, the potential difference between the terminals of the cell is called emf.

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Similar questions

Q. The potential difference between the terminals of a cell in an open circuit is 2.2V. When a resistor of

5 Ω

is connected across the terminals of the cell, the potential difference between the terminals of the cell is found to be 1.8V. The internal resistance of the cell is

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. For a cell Terminal potential difference is

2.2 V

when circuit is open and reduces to

1.8 V

when cell is connected to a resistance of

R = 5 Ω

. Determine internal resistance of cell (

r

)

Q. Battery shown in figure has emf

E

and internal resistance

r

. Current in the circuit can be varied by sliding the contact

J

If at any instant, current flowing through the circuit is

i

, potential difference between the terminals of the cell is

V

, thermal power generated in the external circuit is

P

and the fraction of thermal power generated in the cell to the total electrical power generated in the circuit is equal to

η

, then which of the following graphs is/are correct ?

Q. The resistor of resistance

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is connected between the terminals of a cell of emf

E

and internal resistance

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. The current

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through the circuit is :

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When a cell is connected in a circuit containing various electrical components, a current flows in the electrical circuit because of

The correct options are A emf B the potential difference between terminals of the cell The emf between the terminals of a cell provides energy for the charge to flow through the components joined in the circuit. Also, the potential difference between the terminals of the cell is called emf.

The correct options are
A
emf

B
the potential difference between terminals of the cell

The emf between the terminals of a cell provides energy for the charge to flow through the components joined in the circuit. Also, the potential difference between the terminals of the cell is called emf.