04. Cells, Internal Resistance and Cell Combination, Thermocouple
Current Electricity

152475 A cell can supply current of $1 \mathrm{~A}$ and $0.5 \mathrm{~A}$ via resistances of $2.5 \Omega$ and $10 \Omega$ respectively. The internal resistance of the cell is

1 $2 \Omega$
2 $3 \Omega$
3 $4 \Omega$
4 $5 \Omega$
Current Electricity

152476 A battery with a $12 \mathrm{~V}$ emf has an initial charge of $80 \mathrm{~A}$.h. If the potential across the terminals stays constant until battery is completely discharged, then this battery can deliver energy at the rate of $120 \mathrm{~W}$ for a time

1 $16 \mathrm{~h}$
2 $8 \mathrm{~h}$
3 $4 \mathrm{~h}$
4 $5 \mathrm{~h}$
Current Electricity

152477 The combination of two identical cells, whether connected in series or parallel combination provides the same current though an external resistance of $2 \Omega$. The value of internal resistance of each cell is

1 $2 \Omega$
2 $4 \Omega$
3 $6 \Omega$
4 $8 \Omega$
Current Electricity

152478 Two identical cells each of emf $1.5 \mathrm{~V}$ are connected in parallel across a parallel combination of two resistors each of resistance 20 $\Omega$. A voltmeter connected in the circuit measures $1.2 \mathrm{~V}$. The internal resistance of each cell is.

1 $2.5 \Omega$
2 $4 \Omega$
3 $5 \Omega$
4 $10 \Omega$
Current Electricity

152475 A cell can supply current of $1 \mathrm{~A}$ and $0.5 \mathrm{~A}$ via resistances of $2.5 \Omega$ and $10 \Omega$ respectively. The internal resistance of the cell is

1 $2 \Omega$
2 $3 \Omega$
3 $4 \Omega$
4 $5 \Omega$
Current Electricity

152476 A battery with a $12 \mathrm{~V}$ emf has an initial charge of $80 \mathrm{~A}$.h. If the potential across the terminals stays constant until battery is completely discharged, then this battery can deliver energy at the rate of $120 \mathrm{~W}$ for a time

1 $16 \mathrm{~h}$
2 $8 \mathrm{~h}$
3 $4 \mathrm{~h}$
4 $5 \mathrm{~h}$
Current Electricity

152477 The combination of two identical cells, whether connected in series or parallel combination provides the same current though an external resistance of $2 \Omega$. The value of internal resistance of each cell is

1 $2 \Omega$
2 $4 \Omega$
3 $6 \Omega$
4 $8 \Omega$
Current Electricity

152478 Two identical cells each of emf $1.5 \mathrm{~V}$ are connected in parallel across a parallel combination of two resistors each of resistance 20 $\Omega$. A voltmeter connected in the circuit measures $1.2 \mathrm{~V}$. The internal resistance of each cell is.

1 $2.5 \Omega$
2 $4 \Omega$
3 $5 \Omega$
4 $10 \Omega$
Current Electricity

152475 A cell can supply current of $1 \mathrm{~A}$ and $0.5 \mathrm{~A}$ via resistances of $2.5 \Omega$ and $10 \Omega$ respectively. The internal resistance of the cell is

1 $2 \Omega$
2 $3 \Omega$
3 $4 \Omega$
4 $5 \Omega$
Current Electricity

152476 A battery with a $12 \mathrm{~V}$ emf has an initial charge of $80 \mathrm{~A}$.h. If the potential across the terminals stays constant until battery is completely discharged, then this battery can deliver energy at the rate of $120 \mathrm{~W}$ for a time

1 $16 \mathrm{~h}$
2 $8 \mathrm{~h}$
3 $4 \mathrm{~h}$
4 $5 \mathrm{~h}$
Current Electricity

152477 The combination of two identical cells, whether connected in series or parallel combination provides the same current though an external resistance of $2 \Omega$. The value of internal resistance of each cell is

1 $2 \Omega$
2 $4 \Omega$
3 $6 \Omega$
4 $8 \Omega$
Current Electricity

152478 Two identical cells each of emf $1.5 \mathrm{~V}$ are connected in parallel across a parallel combination of two resistors each of resistance 20 $\Omega$. A voltmeter connected in the circuit measures $1.2 \mathrm{~V}$. The internal resistance of each cell is.

1 $2.5 \Omega$
2 $4 \Omega$
3 $5 \Omega$
4 $10 \Omega$
Current Electricity

152475 A cell can supply current of $1 \mathrm{~A}$ and $0.5 \mathrm{~A}$ via resistances of $2.5 \Omega$ and $10 \Omega$ respectively. The internal resistance of the cell is

1 $2 \Omega$
2 $3 \Omega$
3 $4 \Omega$
4 $5 \Omega$
Current Electricity

152476 A battery with a $12 \mathrm{~V}$ emf has an initial charge of $80 \mathrm{~A}$.h. If the potential across the terminals stays constant until battery is completely discharged, then this battery can deliver energy at the rate of $120 \mathrm{~W}$ for a time

1 $16 \mathrm{~h}$
2 $8 \mathrm{~h}$
3 $4 \mathrm{~h}$
4 $5 \mathrm{~h}$
Current Electricity

152477 The combination of two identical cells, whether connected in series or parallel combination provides the same current though an external resistance of $2 \Omega$. The value of internal resistance of each cell is

1 $2 \Omega$
2 $4 \Omega$
3 $6 \Omega$
4 $8 \Omega$
Current Electricity

152478 Two identical cells each of emf $1.5 \mathrm{~V}$ are connected in parallel across a parallel combination of two resistors each of resistance 20 $\Omega$. A voltmeter connected in the circuit measures $1.2 \mathrm{~V}$. The internal resistance of each cell is.

1 $2.5 \Omega$
2 $4 \Omega$
3 $5 \Omega$
4 $10 \Omega$