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

152595 A battery has an emf of $15 \mathrm{~V}$ and internal resistance of $1 \Omega$. Is the terminal to terminal potential difference less than, equal to or greater than $15 \mathrm{~V}$ if the current in the battery is (1) from negative to positive terminal, (2) from positive to negative terminal (3) zero current?

1 Less, greater, equal
2 Less, less, equal
3 Greater, greater, equal
4 Greater, less, equal
Current Electricity

152597 Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series.
Then, the ratio $\left(\frac{R}{r}\right)$ is

1 2
2 $\frac{1}{2}$
3 $\frac{1}{5}$
4 1
5 5
Current Electricity

152599 In the figure shown below, the terminal voltage $\operatorname{across} E_{2}$ is

1 $12 \mathrm{~V}$
2 $12.66 \mathrm{~V}$
3 $11.34 \mathrm{~V}$
4 $11.66 \mathrm{~V}$
5 $12.33 \mathrm{~V}$
Current Electricity

152600 Two identical cells send the same current in $3 \Omega$ resistance, whether connected in series or in parallel. The internal resistance of the cell should be:

1 $1 \Omega$
2 $3 \Omega$
3 $\frac{1}{2} \Omega$
4 $3.5 \Omega$
5 $\frac{3}{2} \Omega$
Current Electricity

152601 Two identical cells whether connected in parallel or in series gives the same current when connected to an external resistance $1.5 \Omega$. Find the value of internal resistance of each cell.

1 $1 \Omega$
2 $0.5 \Omega$
3 zero
4 $2 \Omega$
5 $1.5 \Omega$
Current Electricity

152595 A battery has an emf of $15 \mathrm{~V}$ and internal resistance of $1 \Omega$. Is the terminal to terminal potential difference less than, equal to or greater than $15 \mathrm{~V}$ if the current in the battery is (1) from negative to positive terminal, (2) from positive to negative terminal (3) zero current?

1 Less, greater, equal
2 Less, less, equal
3 Greater, greater, equal
4 Greater, less, equal
Current Electricity

152597 Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series.
Then, the ratio $\left(\frac{R}{r}\right)$ is

1 2
2 $\frac{1}{2}$
3 $\frac{1}{5}$
4 1
5 5
Current Electricity

152599 In the figure shown below, the terminal voltage $\operatorname{across} E_{2}$ is

1 $12 \mathrm{~V}$
2 $12.66 \mathrm{~V}$
3 $11.34 \mathrm{~V}$
4 $11.66 \mathrm{~V}$
5 $12.33 \mathrm{~V}$
Current Electricity

152600 Two identical cells send the same current in $3 \Omega$ resistance, whether connected in series or in parallel. The internal resistance of the cell should be:

1 $1 \Omega$
2 $3 \Omega$
3 $\frac{1}{2} \Omega$
4 $3.5 \Omega$
5 $\frac{3}{2} \Omega$
Current Electricity

152601 Two identical cells whether connected in parallel or in series gives the same current when connected to an external resistance $1.5 \Omega$. Find the value of internal resistance of each cell.

1 $1 \Omega$
2 $0.5 \Omega$
3 zero
4 $2 \Omega$
5 $1.5 \Omega$
Current Electricity

152595 A battery has an emf of $15 \mathrm{~V}$ and internal resistance of $1 \Omega$. Is the terminal to terminal potential difference less than, equal to or greater than $15 \mathrm{~V}$ if the current in the battery is (1) from negative to positive terminal, (2) from positive to negative terminal (3) zero current?

1 Less, greater, equal
2 Less, less, equal
3 Greater, greater, equal
4 Greater, less, equal
Current Electricity

152597 Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series.
Then, the ratio $\left(\frac{R}{r}\right)$ is

1 2
2 $\frac{1}{2}$
3 $\frac{1}{5}$
4 1
5 5
Current Electricity

152599 In the figure shown below, the terminal voltage $\operatorname{across} E_{2}$ is

1 $12 \mathrm{~V}$
2 $12.66 \mathrm{~V}$
3 $11.34 \mathrm{~V}$
4 $11.66 \mathrm{~V}$
5 $12.33 \mathrm{~V}$
Current Electricity

152600 Two identical cells send the same current in $3 \Omega$ resistance, whether connected in series or in parallel. The internal resistance of the cell should be:

1 $1 \Omega$
2 $3 \Omega$
3 $\frac{1}{2} \Omega$
4 $3.5 \Omega$
5 $\frac{3}{2} \Omega$
Current Electricity

152601 Two identical cells whether connected in parallel or in series gives the same current when connected to an external resistance $1.5 \Omega$. Find the value of internal resistance of each cell.

1 $1 \Omega$
2 $0.5 \Omega$
3 zero
4 $2 \Omega$
5 $1.5 \Omega$
Current Electricity

152595 A battery has an emf of $15 \mathrm{~V}$ and internal resistance of $1 \Omega$. Is the terminal to terminal potential difference less than, equal to or greater than $15 \mathrm{~V}$ if the current in the battery is (1) from negative to positive terminal, (2) from positive to negative terminal (3) zero current?

1 Less, greater, equal
2 Less, less, equal
3 Greater, greater, equal
4 Greater, less, equal
Current Electricity

152597 Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series.
Then, the ratio $\left(\frac{R}{r}\right)$ is

1 2
2 $\frac{1}{2}$
3 $\frac{1}{5}$
4 1
5 5
Current Electricity

152599 In the figure shown below, the terminal voltage $\operatorname{across} E_{2}$ is

1 $12 \mathrm{~V}$
2 $12.66 \mathrm{~V}$
3 $11.34 \mathrm{~V}$
4 $11.66 \mathrm{~V}$
5 $12.33 \mathrm{~V}$
Current Electricity

152600 Two identical cells send the same current in $3 \Omega$ resistance, whether connected in series or in parallel. The internal resistance of the cell should be:

1 $1 \Omega$
2 $3 \Omega$
3 $\frac{1}{2} \Omega$
4 $3.5 \Omega$
5 $\frac{3}{2} \Omega$
Current Electricity

152601 Two identical cells whether connected in parallel or in series gives the same current when connected to an external resistance $1.5 \Omega$. Find the value of internal resistance of each cell.

1 $1 \Omega$
2 $0.5 \Omega$
3 zero
4 $2 \Omega$
5 $1.5 \Omega$
Current Electricity

152595 A battery has an emf of $15 \mathrm{~V}$ and internal resistance of $1 \Omega$. Is the terminal to terminal potential difference less than, equal to or greater than $15 \mathrm{~V}$ if the current in the battery is (1) from negative to positive terminal, (2) from positive to negative terminal (3) zero current?

1 Less, greater, equal
2 Less, less, equal
3 Greater, greater, equal
4 Greater, less, equal
Current Electricity

152597 Five cells each of emf $E$ and internal resistance $r$ send the same amount of current through an external resistance $R$ whether the cells are connected in parallel or in series.
Then, the ratio $\left(\frac{R}{r}\right)$ is

1 2
2 $\frac{1}{2}$
3 $\frac{1}{5}$
4 1
5 5
Current Electricity

152599 In the figure shown below, the terminal voltage $\operatorname{across} E_{2}$ is

1 $12 \mathrm{~V}$
2 $12.66 \mathrm{~V}$
3 $11.34 \mathrm{~V}$
4 $11.66 \mathrm{~V}$
5 $12.33 \mathrm{~V}$
Current Electricity

152600 Two identical cells send the same current in $3 \Omega$ resistance, whether connected in series or in parallel. The internal resistance of the cell should be:

1 $1 \Omega$
2 $3 \Omega$
3 $\frac{1}{2} \Omega$
4 $3.5 \Omega$
5 $\frac{3}{2} \Omega$
Current Electricity

152601 Two identical cells whether connected in parallel or in series gives the same current when connected to an external resistance $1.5 \Omega$. Find the value of internal resistance of each cell.

1 $1 \Omega$
2 $0.5 \Omega$
3 zero
4 $2 \Omega$
5 $1.5 \Omega$