- 1(current)
Q. No.In the given circuit, an ideal voltmeter connected across the \(10~\Omega\) resistance reads \(2~\text{V}\). The internal resistance \(r\), of each cell is:
1. \( 1~ \Omega \)
2. \( 0.5 ~\Omega \)
3. \( 1.5~ \Omega \)
4. \( 0 ~\Omega\)
Subtopic: EMF & Terminal Voltage |
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Level 2: 60%+
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Two identical cells, each having EMF \(E,\) are connected in series to an external resistance \(R.\) The internal resistances of the cells are \(r_1\) and \(r_2,\) with \(r_1>r_2.\) If the potential difference across the cell of internal resistance \(r_1\) is zero, then the value of \(R\) is:
| 1. | \((r_{1}-r_{2} )\) | 2. | \(\dfrac{{r}_{1} r_{2}}{({r}_{1}+r_{2})} \) |
| 3. | \(\dfrac{({r}_{1}+r_{2})}{2} \) | 4. | \(({r}_{2}-{r}_{1})\) |
Subtopic: EMF & Terminal Voltage |
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In the given circuit, the reading on the ideal voltmeter is equal to:
1. \(3~\text V\)
2. \(1.8~\text V\)
3. \(1.2~\text V\)
4. zero
1. \(3~\text V\)
2. \(1.8~\text V\)
3. \(1.2~\text V\)
4. zero
Subtopic: EMF & Terminal Voltage |
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Level 2: 60%+
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- 1(current)
Q. No.
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