A battery with 10V emf and 3 internal resistance is connected to a resistor with current 0.5A.What is the terminal voltage when the circuit is closed?

When current is drawn from a cell, the potential difference between a cell’s electrodes, when current is drawn is known as its Terminal Voltage. As per the given question, the following can be expressed:

The E.M.F of battery = 10 V
The internal resistance, r = 3 $\Omega$
Current, I = 0.5A
Resistance = R

According to Ohm’s law, we can obtain:

$I = {{E} \over (R + r)}$

Therefore, R = 17 $\Omega$

Terminal voltage of resistor = V

Now, as per what Ohm’s Law specifies,

V = I $\times$ R

Hence, Voltage, V = 8.5 V

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A battery with 10V emf and 3 internal resistance is connected to a resistor with current 0.5A. What is the terminal voltage when the circuit is closed?

CBSE CLASS XII Related Questions

2.
Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

3.
With the help of a labelled diagram, explain the principle, construction and working of an a.c. generator.

4.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

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A battery with 10V emf and 3 internal resistance is connected to a resistor with current 0.5A. What is the terminal voltage when the circuit is closed?

CBSE CLASS XII Related Questions

2.Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

3.With the help of a labelled diagram, explain the principle, construction and working of an a.c. generator.

4.A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

3.
With the help of a labelled diagram, explain the principle, construction and working of an a.c. generator.

4.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?