CELLS AND COMBINATION OF CELLS
Current Electricity

268328 12 cells of each emf \(2 \mathrm{~V}\) areconnected in series among them, if 3 cells are connected wrongly. Then the effective emf. of the combination is

1 \(18 \mathrm{~V}\)
2 \(12 \mathrm{~V}\)
3 \(24 \mathrm{~V}\)
4 \(6 \mathrm{~V}\)
Current Electricity

268329 When a battery connected across a resistor of \(16 \Omega\), the voltage across the resistor is 12V.W hen the same battery is connected across a resistor of \(10 \Omega\), voltage across it is \(11 \mathrm{~V}\). The internal resistance of the battery in ohms is

1 \(10 / 7\)
2 \(20 / 7\)
3 \(25 / 7\)
4 \(30 / 7\)
Current Electricity

268388 A cell of emf \(6 \mathrm{~V}\) is being charged by \(1 \mathrm{~A}\) current. If the internal resistance of the cell is 1 ohm, the potential difference across the terminals of the cell is

1 \(5 \mathrm{~V}\)
2 \(7 \mathrm{~N}\)
3 \(6 \mathrm{~V}\)
4 \(8 \mathrm{~V}\)
Current Electricity

268389 When two identical cells are connected either in series or in parallel across 2 ohm resistor they send the same current through it. The internal resistance of each cell is

1 2 ohm
2 1.2 ohm
3 12 ohm
4 21 ohm
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Current Electricity

268328 12 cells of each emf \(2 \mathrm{~V}\) areconnected in series among them, if 3 cells are connected wrongly. Then the effective emf. of the combination is

1 \(18 \mathrm{~V}\)
2 \(12 \mathrm{~V}\)
3 \(24 \mathrm{~V}\)
4 \(6 \mathrm{~V}\)
Current Electricity

268329 When a battery connected across a resistor of \(16 \Omega\), the voltage across the resistor is 12V.W hen the same battery is connected across a resistor of \(10 \Omega\), voltage across it is \(11 \mathrm{~V}\). The internal resistance of the battery in ohms is

1 \(10 / 7\)
2 \(20 / 7\)
3 \(25 / 7\)
4 \(30 / 7\)
Current Electricity

268388 A cell of emf \(6 \mathrm{~V}\) is being charged by \(1 \mathrm{~A}\) current. If the internal resistance of the cell is 1 ohm, the potential difference across the terminals of the cell is

1 \(5 \mathrm{~V}\)
2 \(7 \mathrm{~N}\)
3 \(6 \mathrm{~V}\)
4 \(8 \mathrm{~V}\)
Current Electricity

268389 When two identical cells are connected either in series or in parallel across 2 ohm resistor they send the same current through it. The internal resistance of each cell is

1 2 ohm
2 1.2 ohm
3 12 ohm
4 21 ohm
Current Electricity

268328 12 cells of each emf \(2 \mathrm{~V}\) areconnected in series among them, if 3 cells are connected wrongly. Then the effective emf. of the combination is

1 \(18 \mathrm{~V}\)
2 \(12 \mathrm{~V}\)
3 \(24 \mathrm{~V}\)
4 \(6 \mathrm{~V}\)
Current Electricity

268329 When a battery connected across a resistor of \(16 \Omega\), the voltage across the resistor is 12V.W hen the same battery is connected across a resistor of \(10 \Omega\), voltage across it is \(11 \mathrm{~V}\). The internal resistance of the battery in ohms is

1 \(10 / 7\)
2 \(20 / 7\)
3 \(25 / 7\)
4 \(30 / 7\)
Current Electricity

268388 A cell of emf \(6 \mathrm{~V}\) is being charged by \(1 \mathrm{~A}\) current. If the internal resistance of the cell is 1 ohm, the potential difference across the terminals of the cell is

1 \(5 \mathrm{~V}\)
2 \(7 \mathrm{~N}\)
3 \(6 \mathrm{~V}\)
4 \(8 \mathrm{~V}\)
Current Electricity

268389 When two identical cells are connected either in series or in parallel across 2 ohm resistor they send the same current through it. The internal resistance of each cell is

1 2 ohm
2 1.2 ohm
3 12 ohm
4 21 ohm
Current Electricity

268328 12 cells of each emf \(2 \mathrm{~V}\) areconnected in series among them, if 3 cells are connected wrongly. Then the effective emf. of the combination is

1 \(18 \mathrm{~V}\)
2 \(12 \mathrm{~V}\)
3 \(24 \mathrm{~V}\)
4 \(6 \mathrm{~V}\)
Current Electricity

268329 When a battery connected across a resistor of \(16 \Omega\), the voltage across the resistor is 12V.W hen the same battery is connected across a resistor of \(10 \Omega\), voltage across it is \(11 \mathrm{~V}\). The internal resistance of the battery in ohms is

1 \(10 / 7\)
2 \(20 / 7\)
3 \(25 / 7\)
4 \(30 / 7\)
Current Electricity

268388 A cell of emf \(6 \mathrm{~V}\) is being charged by \(1 \mathrm{~A}\) current. If the internal resistance of the cell is 1 ohm, the potential difference across the terminals of the cell is

1 \(5 \mathrm{~V}\)
2 \(7 \mathrm{~N}\)
3 \(6 \mathrm{~V}\)
4 \(8 \mathrm{~V}\)
Current Electricity

268389 When two identical cells are connected either in series or in parallel across 2 ohm resistor they send the same current through it. The internal resistance of each cell is

1 2 ohm
2 1.2 ohm
3 12 ohm
4 21 ohm