CELLS AND COMBINATION OF CELLS
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Current Electricity

268394 The emf of a cell is \(2 \mathrm{~V}\). When the terminals of the cell is connected to a resistance \(4 \Omega\). The potential difference across the terminals, if internal resistance of cell is \(1 \Omega\) is

1 \(\frac{3}{5} V\)
2 \(\frac{8}{5} V\)
3 \(\frac{6}{5} V\)
4 \(\frac{5}{8} V\)
Current Electricity

268395 If the external resistance is equal to internal resistance of a cell of emf \(E\). The current across the circuit is

1 \(\frac{E}{r}\)
2 \(\frac{r}{E}\)
3 \(\frac{r}{2 E}\)
4 \(\frac{E}{2 r}\)
Current Electricity

268396 Two cells each of emf \(10 \mathrm{~V}\) and each \(1 \Omega\) internal resistance are used to send a current through a wire of \(2 \Omega\) resistance. The cells are arranged in parallel. Then the current through the circuit

1 \(2 \mathrm{~A}\)
2 \(4 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(5 \mathrm{~A}\)
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Current Electricity

268394 The emf of a cell is \(2 \mathrm{~V}\). When the terminals of the cell is connected to a resistance \(4 \Omega\). The potential difference across the terminals, if internal resistance of cell is \(1 \Omega\) is

1 \(\frac{3}{5} V\)
2 \(\frac{8}{5} V\)
3 \(\frac{6}{5} V\)
4 \(\frac{5}{8} V\)
Current Electricity

268395 If the external resistance is equal to internal resistance of a cell of emf \(E\). The current across the circuit is

1 \(\frac{E}{r}\)
2 \(\frac{r}{E}\)
3 \(\frac{r}{2 E}\)
4 \(\frac{E}{2 r}\)
Current Electricity

268396 Two cells each of emf \(10 \mathrm{~V}\) and each \(1 \Omega\) internal resistance are used to send a current through a wire of \(2 \Omega\) resistance. The cells are arranged in parallel. Then the current through the circuit

1 \(2 \mathrm{~A}\)
2 \(4 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(5 \mathrm{~A}\)
For More Updates join with Us
Current Electricity

268394 The emf of a cell is \(2 \mathrm{~V}\). When the terminals of the cell is connected to a resistance \(4 \Omega\). The potential difference across the terminals, if internal resistance of cell is \(1 \Omega\) is

1 \(\frac{3}{5} V\)
2 \(\frac{8}{5} V\)
3 \(\frac{6}{5} V\)
4 \(\frac{5}{8} V\)
Current Electricity

268395 If the external resistance is equal to internal resistance of a cell of emf \(E\). The current across the circuit is

1 \(\frac{E}{r}\)
2 \(\frac{r}{E}\)
3 \(\frac{r}{2 E}\)
4 \(\frac{E}{2 r}\)
Current Electricity

268396 Two cells each of emf \(10 \mathrm{~V}\) and each \(1 \Omega\) internal resistance are used to send a current through a wire of \(2 \Omega\) resistance. The cells are arranged in parallel. Then the current through the circuit

1 \(2 \mathrm{~A}\)
2 \(4 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(5 \mathrm{~A}\)
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