Question

a resistance with a resistance R is connected to a battery with a voltage V to produce a current I. what would be new current ( in terms of I ) if the voltage is doubled and the voltage is halved HELP ME MATE PLZZZZZZZZZZZZZZZZZZ HELP MEEEEE NEED A CRT ANS

Answer 1

Answer:

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Answer 2

The current when voltage is doubles.amd halved will be doubled and halved.

Given - Voltage

Find - Current

Solution - Current, voltage and resistance are related to each other by the formula -

Voltage = Current × Resistance

Now, using this relation to calculate the effect on current.

Let $\: V_{1}, V_{2}, I_{1}, I_{2}$ be the initial and final voltage and initial and final current.

The relation between voltage and current will be -

$\frac{V_{1} }{I_{1} } = \frac{V_{2} }{I_{2} }$

When voltage is doubled -

$\frac{V_{1} }{I_{1} } = \frac{2V_{1} }{I_{2} }$

Cancelling voltage as it is common on both sides

$I_{2} = 2I_{1}$

When voltage is halved -

$\frac{V_{1} }{I_{1} } = \frac{ \frac{1}{2} V_{1} }{I_{2} }$

Cancelling the voltage as it is common on both sides

$I_{2} = \frac{1}{2} I_{1}$

Hence, double or half the voltage will generate double and half current.

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