152470 The magnitude and direction of the current in the following circuit is :-

152471 A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to cool from $60^{\circ} \mathrm{C}$ to $40^{\circ} \mathrm{C}$ is:

152472 A battery of emf $12 \mathrm{~V}$ and internal resistance $4 \Omega$ is connected to a resistor. The resistance of the resistor if the current in the circuit is $0.8 \mathrm{~A}$ is-

152473 The equivalent resistance of the circuit as shown in the figure between the points $A$ and $B$ is

152474 $10 \mathrm{~W}$ is to be delivered to a device via a wire having resistance $2 \Omega$. If $20 \mathrm{~V}$ is the voltage across the device, the power wasted in the process is

152470 The magnitude and direction of the current in the following circuit is :-

152471 A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to cool from $60^{\circ} \mathrm{C}$ to $40^{\circ} \mathrm{C}$ is:

152472 A battery of emf $12 \mathrm{~V}$ and internal resistance $4 \Omega$ is connected to a resistor. The resistance of the resistor if the current in the circuit is $0.8 \mathrm{~A}$ is-

152473 The equivalent resistance of the circuit as shown in the figure between the points $A$ and $B$ is

152474 $10 \mathrm{~W}$ is to be delivered to a device via a wire having resistance $2 \Omega$. If $20 \mathrm{~V}$ is the voltage across the device, the power wasted in the process is

152470 The magnitude and direction of the current in the following circuit is :-

152471 A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to cool from $60^{\circ} \mathrm{C}$ to $40^{\circ} \mathrm{C}$ is:

152472 A battery of emf $12 \mathrm{~V}$ and internal resistance $4 \Omega$ is connected to a resistor. The resistance of the resistor if the current in the circuit is $0.8 \mathrm{~A}$ is-

152473 The equivalent resistance of the circuit as shown in the figure between the points $A$ and $B$ is

152474 $10 \mathrm{~W}$ is to be delivered to a device via a wire having resistance $2 \Omega$. If $20 \mathrm{~V}$ is the voltage across the device, the power wasted in the process is

152470 The magnitude and direction of the current in the following circuit is :-

152471 A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to cool from $60^{\circ} \mathrm{C}$ to $40^{\circ} \mathrm{C}$ is:

152472 A battery of emf $12 \mathrm{~V}$ and internal resistance $4 \Omega$ is connected to a resistor. The resistance of the resistor if the current in the circuit is $0.8 \mathrm{~A}$ is-

152473 The equivalent resistance of the circuit as shown in the figure between the points $A$ and $B$ is

152474 $10 \mathrm{~W}$ is to be delivered to a device via a wire having resistance $2 \Omega$. If $20 \mathrm{~V}$ is the voltage across the device, the power wasted in the process is

152470 The magnitude and direction of the current in the following circuit is :-

152471 A body cools from $80^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 5 minutes. The temperature of the surrounding is $20^{\circ} \mathrm{C}$. The time it takes to cool from $60^{\circ} \mathrm{C}$ to $40^{\circ} \mathrm{C}$ is:

152472 A battery of emf $12 \mathrm{~V}$ and internal resistance $4 \Omega$ is connected to a resistor. The resistance of the resistor if the current in the circuit is $0.8 \mathrm{~A}$ is-

152473 The equivalent resistance of the circuit as shown in the figure between the points $A$ and $B$ is

152474 $10 \mathrm{~W}$ is to be delivered to a device via a wire having resistance $2 \Omega$. If $20 \mathrm{~V}$ is the voltage across the device, the power wasted in the process is