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?

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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.

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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.In a telescope the objective has much larger aperture than the eye piece. Why ?

3.Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

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.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
In a telescope the objective has much larger aperture than the eye piece. Why ?

3.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

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.