Question

10
विभवमापी के तार की लम्बाई 10 मी. है। उसके सिरों पर 2 वोल्ट वि.वा. बल
लगाने पर विभव प्रवणता का मान ज्ञात कीजिए​

Answer 1

Answer:

x= Vab/Lp

x= 2/10

.2 volt

Answer 2

Given:

विभवमापी के तार की लम्बाई 10 मी. है। उसके सिरों पर 2 वोल्ट वि.वा. बल

लगाने पर विभव प्रवणता का मान ज्ञात कीजिए​

The length of the wire of the potentiometer is 10 meters. What will be the value of the potential gradient when 2 volts electromotive force is applied at its ends?​

To find:

The value of the potential gradient

Solution:

To solve the given problem we will use the following formula of the potential gradient:

$\boxed{\bold{Potential \:Gradient, K = \frac{V_p_d}{L} }}$

where $V_p_d$ = potential drop at the wire and L = length of the wire

Here we have

The length of the wire of the potentiometer, L = 10 meters

The electromotive force applied at the ends of the wire, $V_p_d$ = 2 Volts

Here we have

The length of the wire of the potentiometer, L = 10 meters

The electromotive force applied at the ends of the wire, $V_p_d$ = 2 Volts

Now, by substituting the given values of L and $V_p_d$ in the above formula of the potential gradient, we get

$K = \frac{2\:Volts}{10\:meters}$

$\implies K = \frac{1}{5} \:Volts/meter$

$\implies \bold{K} = \bold{0.2 \:Volt/meter}$

Thus, the value of the potential gradient when 2 volts electromotive force is applied at its ends will be → 0.2 Volts/meter.

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