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

152622 Current provided by a battery is maximum when

1 internal resistance is equal to external resistance
2 internal resistance is greater than external resistance
3 internal resistance is less than external resistance
4 None of the above
Current Electricity

152623 Two batteries of emf $4 \mathrm{~V}$ and $8 \mathrm{~V}$ with internal resistances $1 \Omega$ and $2 \Omega$ respectively are connected to an external resistance, $R=9 \Omega$ as shown in figure. The current in circuit and the potential difference between $P$ and $Q$ respectively will be

1 $\frac{1}{9} \mathrm{~A}, 9 \mathrm{~V}$
2 $\frac{1}{12} \mathrm{~A}, 12 \mathrm{~V}$
3 $\frac{1}{3} \mathrm{~A}, 3 \mathrm{~V}$
4 $\frac{1}{6} \mathrm{~A}, 4 \mathrm{~V}$
Current Electricity

152624 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.2 \Omega$ is connected with the resistance of $1.8 \Omega$. The voltage across the cell terminal will be

1 $6.3 \mathrm{~V}$
2 $2.4 \mathrm{~V}$
3 $3.8 \mathrm{~V}$
4 $3.6 \mathrm{~V}$
Current Electricity

152625 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.5 \Omega$ is connected to a $7.5 \Omega$ external resistance. The terminal potential difference of the cell is:-

1 $3.75 \mathrm{~V}$
2 $4.25 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $0.375 \mathrm{~V}$
Current Electricity

152626 Two resistors or resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is

1 $1: 4$
2 $4: 1$
3 $1: 2$
4 $2: 1$
Current Electricity

152622 Current provided by a battery is maximum when

1 internal resistance is equal to external resistance
2 internal resistance is greater than external resistance
3 internal resistance is less than external resistance
4 None of the above
Current Electricity

152623 Two batteries of emf $4 \mathrm{~V}$ and $8 \mathrm{~V}$ with internal resistances $1 \Omega$ and $2 \Omega$ respectively are connected to an external resistance, $R=9 \Omega$ as shown in figure. The current in circuit and the potential difference between $P$ and $Q$ respectively will be

1 $\frac{1}{9} \mathrm{~A}, 9 \mathrm{~V}$
2 $\frac{1}{12} \mathrm{~A}, 12 \mathrm{~V}$
3 $\frac{1}{3} \mathrm{~A}, 3 \mathrm{~V}$
4 $\frac{1}{6} \mathrm{~A}, 4 \mathrm{~V}$
Current Electricity

152624 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.2 \Omega$ is connected with the resistance of $1.8 \Omega$. The voltage across the cell terminal will be

1 $6.3 \mathrm{~V}$
2 $2.4 \mathrm{~V}$
3 $3.8 \mathrm{~V}$
4 $3.6 \mathrm{~V}$
Current Electricity

152625 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.5 \Omega$ is connected to a $7.5 \Omega$ external resistance. The terminal potential difference of the cell is:-

1 $3.75 \mathrm{~V}$
2 $4.25 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $0.375 \mathrm{~V}$
Current Electricity

152626 Two resistors or resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is

1 $1: 4$
2 $4: 1$
3 $1: 2$
4 $2: 1$
Current Electricity

152622 Current provided by a battery is maximum when

1 internal resistance is equal to external resistance
2 internal resistance is greater than external resistance
3 internal resistance is less than external resistance
4 None of the above
Current Electricity

152623 Two batteries of emf $4 \mathrm{~V}$ and $8 \mathrm{~V}$ with internal resistances $1 \Omega$ and $2 \Omega$ respectively are connected to an external resistance, $R=9 \Omega$ as shown in figure. The current in circuit and the potential difference between $P$ and $Q$ respectively will be

1 $\frac{1}{9} \mathrm{~A}, 9 \mathrm{~V}$
2 $\frac{1}{12} \mathrm{~A}, 12 \mathrm{~V}$
3 $\frac{1}{3} \mathrm{~A}, 3 \mathrm{~V}$
4 $\frac{1}{6} \mathrm{~A}, 4 \mathrm{~V}$
Current Electricity

152624 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.2 \Omega$ is connected with the resistance of $1.8 \Omega$. The voltage across the cell terminal will be

1 $6.3 \mathrm{~V}$
2 $2.4 \mathrm{~V}$
3 $3.8 \mathrm{~V}$
4 $3.6 \mathrm{~V}$
Current Electricity

152625 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.5 \Omega$ is connected to a $7.5 \Omega$ external resistance. The terminal potential difference of the cell is:-

1 $3.75 \mathrm{~V}$
2 $4.25 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $0.375 \mathrm{~V}$
Current Electricity

152626 Two resistors or resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is

1 $1: 4$
2 $4: 1$
3 $1: 2$
4 $2: 1$
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Current Electricity

152622 Current provided by a battery is maximum when

1 internal resistance is equal to external resistance
2 internal resistance is greater than external resistance
3 internal resistance is less than external resistance
4 None of the above
Current Electricity

152623 Two batteries of emf $4 \mathrm{~V}$ and $8 \mathrm{~V}$ with internal resistances $1 \Omega$ and $2 \Omega$ respectively are connected to an external resistance, $R=9 \Omega$ as shown in figure. The current in circuit and the potential difference between $P$ and $Q$ respectively will be

1 $\frac{1}{9} \mathrm{~A}, 9 \mathrm{~V}$
2 $\frac{1}{12} \mathrm{~A}, 12 \mathrm{~V}$
3 $\frac{1}{3} \mathrm{~A}, 3 \mathrm{~V}$
4 $\frac{1}{6} \mathrm{~A}, 4 \mathrm{~V}$
Current Electricity

152624 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.2 \Omega$ is connected with the resistance of $1.8 \Omega$. The voltage across the cell terminal will be

1 $6.3 \mathrm{~V}$
2 $2.4 \mathrm{~V}$
3 $3.8 \mathrm{~V}$
4 $3.6 \mathrm{~V}$
Current Electricity

152625 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.5 \Omega$ is connected to a $7.5 \Omega$ external resistance. The terminal potential difference of the cell is:-

1 $3.75 \mathrm{~V}$
2 $4.25 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $0.375 \mathrm{~V}$
Current Electricity

152626 Two resistors or resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is

1 $1: 4$
2 $4: 1$
3 $1: 2$
4 $2: 1$
Current Electricity

152622 Current provided by a battery is maximum when

1 internal resistance is equal to external resistance
2 internal resistance is greater than external resistance
3 internal resistance is less than external resistance
4 None of the above
Current Electricity

152623 Two batteries of emf $4 \mathrm{~V}$ and $8 \mathrm{~V}$ with internal resistances $1 \Omega$ and $2 \Omega$ respectively are connected to an external resistance, $R=9 \Omega$ as shown in figure. The current in circuit and the potential difference between $P$ and $Q$ respectively will be

1 $\frac{1}{9} \mathrm{~A}, 9 \mathrm{~V}$
2 $\frac{1}{12} \mathrm{~A}, 12 \mathrm{~V}$
3 $\frac{1}{3} \mathrm{~A}, 3 \mathrm{~V}$
4 $\frac{1}{6} \mathrm{~A}, 4 \mathrm{~V}$
Current Electricity

152624 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.2 \Omega$ is connected with the resistance of $1.8 \Omega$. The voltage across the cell terminal will be

1 $6.3 \mathrm{~V}$
2 $2.4 \mathrm{~V}$
3 $3.8 \mathrm{~V}$
4 $3.6 \mathrm{~V}$
Current Electricity

152625 A cell of emf $4 \mathrm{~V}$ and internal resistance $0.5 \Omega$ is connected to a $7.5 \Omega$ external resistance. The terminal potential difference of the cell is:-

1 $3.75 \mathrm{~V}$
2 $4.25 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $0.375 \mathrm{~V}$
Current Electricity

152626 Two resistors or resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is

1 $1: 4$
2 $4: 1$
3 $1: 2$
4 $2: 1$