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To verify Ohm's law, a student connects ...

To verify Ohm's law, a student connects the voltmeter across the battery as shown in the figure. The measure voltage is plotted as a function of the current, and the following graph is obtained


if `V_(O)` is almost zero. identify the correct statement

A

The value of the resistance R is `1.5Omega`

B

The emf of the battery is 1.5 V and the value of R is `1.5Omega`

C

The potential difference across the battery is 1.5V when it sends a current of 1000 mA

D

The emf of the battery is 1.5V and its internal resistance is `1.5Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
`l=0, V=1.5V=in" "therefore" "in=1.5V`
`l=1000mA=1A`
`V~~0" "rArr" "in-lr=0" "1.5-1xxr=0`
`r=1.5Omega`
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