Question

प्रश्न-8
विभवमापी के तार की लंबाई 5 मी. है। उसके सिरों पर 5 वोल्ट वि.वा. बल लगाने पर
विभव प्रवणता का मान कितना होगा?​

Answer 1

Answer:

x=Vab/lp

x=5/10

x=.5 volt

Answer 2

SOLUTION

GIVEN

The length of the wire of the potentiometer is 5 meters.

TO DETERMINE

The value of the voltage gradient when 5 volts potential difference is applied at its ends

EVALUATION

Here it is given that the length of the wire of the potentiometer is 5 meters.

Also 5 volts potential difference is applied at its ends

So by the given condition

D = The length of the wire of the potentiometer

= 5 meters

V = The potential difference is applied at its ends

= 5 volts

We know that voltage gradient is a difference in electrical potential across a distance or space.

More precisely voltage gradient is potential drop per unit length of wire.

Thus the required value of the voltage gradient

$\displaystyle \sf{ = \frac{V}{D} \: \: \: volt / meter }$

$\displaystyle \sf{ = \frac{5}{5} \: \: \: volt / meter }$

$\displaystyle \sf{ = 1 \: \: \: volt / meter }$

FINAL ANSWER

The value of the voltage gradient

= 1 volt / meter

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