146499 A silver wire has temperature coefficient of resistivity $4 \times 10^{-3} /{ }^{\circ} \mathrm{C}$ and its resistance at $20^{\circ} \mathrm{C}$ is $10 \Omega$. Neglecting any change in dimensions due to the change in temperature, its resistance at $40{ }^{\circ} \mathrm{C}$ is

146500 A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increases by $30^{\circ} \mathrm{C}$. How much heat is added approximately to helium during expansion?

146501 The resistance of a wire at room temperature $30^{\circ} \mathrm{C}$ is found to be $10 \Omega$. Now to increase the resistance by $10 \%$, the temperature of the wire must be [The temperature coefficient of resistance of the material of the wire is $\left.0.002 /{ }^{\circ} \mathrm{C}\right]$

146502 The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is... $/{ }^{\circ} \mathrm{C}$.

146503 One junction of a certain thermoelectric couple is at a fixed temperature $T_{r}$ and the other junction is at temperature $T$. The thermoelectromotive force for this is expressed by $E=$ $k\left(T-T_{r}\right)\left[T_{0}-\frac{1}{2}\left(T+T_{r}\right)\right]$. At temperature $T$ $=\frac{1}{2} T_{0}$, the thermoelectric power is

146499 A silver wire has temperature coefficient of resistivity $4 \times 10^{-3} /{ }^{\circ} \mathrm{C}$ and its resistance at $20^{\circ} \mathrm{C}$ is $10 \Omega$. Neglecting any change in dimensions due to the change in temperature, its resistance at $40{ }^{\circ} \mathrm{C}$ is

146500 A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increases by $30^{\circ} \mathrm{C}$. How much heat is added approximately to helium during expansion?

146501 The resistance of a wire at room temperature $30^{\circ} \mathrm{C}$ is found to be $10 \Omega$. Now to increase the resistance by $10 \%$, the temperature of the wire must be [The temperature coefficient of resistance of the material of the wire is $\left.0.002 /{ }^{\circ} \mathrm{C}\right]$

146502 The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is... $/{ }^{\circ} \mathrm{C}$.

146503 One junction of a certain thermoelectric couple is at a fixed temperature $T_{r}$ and the other junction is at temperature $T$. The thermoelectromotive force for this is expressed by $E=$ $k\left(T-T_{r}\right)\left[T_{0}-\frac{1}{2}\left(T+T_{r}\right)\right]$. At temperature $T$ $=\frac{1}{2} T_{0}$, the thermoelectric power is

146499 A silver wire has temperature coefficient of resistivity $4 \times 10^{-3} /{ }^{\circ} \mathrm{C}$ and its resistance at $20^{\circ} \mathrm{C}$ is $10 \Omega$. Neglecting any change in dimensions due to the change in temperature, its resistance at $40{ }^{\circ} \mathrm{C}$ is

146500 A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increases by $30^{\circ} \mathrm{C}$. How much heat is added approximately to helium during expansion?

146501 The resistance of a wire at room temperature $30^{\circ} \mathrm{C}$ is found to be $10 \Omega$. Now to increase the resistance by $10 \%$, the temperature of the wire must be [The temperature coefficient of resistance of the material of the wire is $\left.0.002 /{ }^{\circ} \mathrm{C}\right]$

146502 The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is... $/{ }^{\circ} \mathrm{C}$.

146503 One junction of a certain thermoelectric couple is at a fixed temperature $T_{r}$ and the other junction is at temperature $T$. The thermoelectromotive force for this is expressed by $E=$ $k\left(T-T_{r}\right)\left[T_{0}-\frac{1}{2}\left(T+T_{r}\right)\right]$. At temperature $T$ $=\frac{1}{2} T_{0}$, the thermoelectric power is

146499 A silver wire has temperature coefficient of resistivity $4 \times 10^{-3} /{ }^{\circ} \mathrm{C}$ and its resistance at $20^{\circ} \mathrm{C}$ is $10 \Omega$. Neglecting any change in dimensions due to the change in temperature, its resistance at $40{ }^{\circ} \mathrm{C}$ is

146500 A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increases by $30^{\circ} \mathrm{C}$. How much heat is added approximately to helium during expansion?

146501 The resistance of a wire at room temperature $30^{\circ} \mathrm{C}$ is found to be $10 \Omega$. Now to increase the resistance by $10 \%$, the temperature of the wire must be [The temperature coefficient of resistance of the material of the wire is $\left.0.002 /{ }^{\circ} \mathrm{C}\right]$

146502 The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is... $/{ }^{\circ} \mathrm{C}$.

146503 One junction of a certain thermoelectric couple is at a fixed temperature $T_{r}$ and the other junction is at temperature $T$. The thermoelectromotive force for this is expressed by $E=$ $k\left(T-T_{r}\right)\left[T_{0}-\frac{1}{2}\left(T+T_{r}\right)\right]$. At temperature $T$ $=\frac{1}{2} T_{0}$, the thermoelectric power is

146499 A silver wire has temperature coefficient of resistivity $4 \times 10^{-3} /{ }^{\circ} \mathrm{C}$ and its resistance at $20^{\circ} \mathrm{C}$ is $10 \Omega$. Neglecting any change in dimensions due to the change in temperature, its resistance at $40{ }^{\circ} \mathrm{C}$ is

146500 A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increases by $30^{\circ} \mathrm{C}$. How much heat is added approximately to helium during expansion?

146501 The resistance of a wire at room temperature $30^{\circ} \mathrm{C}$ is found to be $10 \Omega$. Now to increase the resistance by $10 \%$, the temperature of the wire must be [The temperature coefficient of resistance of the material of the wire is $\left.0.002 /{ }^{\circ} \mathrm{C}\right]$

146502 The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is... $/{ }^{\circ} \mathrm{C}$.

146503 One junction of a certain thermoelectric couple is at a fixed temperature $T_{r}$ and the other junction is at temperature $T$. The thermoelectromotive force for this is expressed by $E=$ $k\left(T-T_{r}\right)\left[T_{0}-\frac{1}{2}\left(T+T_{r}\right)\right]$. At temperature $T$ $=\frac{1}{2} T_{0}$, the thermoelectric power is