268474 The resistance of a platinum wire of a platinum resistance thermometer at the ice point is\(5 \Omega\) and at steam point is \(5.4 \Omega\). When the thermometer is inserted in a hot bath, the resistance of the platinum wire is \(6.2 \Omega\). Find the temperature of the hot bath.

268475 Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio\(1: 2\) and if no resistance value is fractional, the largest of the three resistance in ohm is

268476 A carbon filament has resistance of\(120 \Omega\) at \(0^{\circ} \mathrm{C}\) what must be the resistance of a copper filament connected in series with carbon so that combination has same resistance at all temperatures
\(\begin{aligned}
& \left(\alpha_{\text {carton }}=-5 \times 10^{-4} /{ }^{\circ} \mathrm{C}, \alpha_{\text {copper }}=4 \times 10^{-3} /{ }^{\circ} \mathrm{C}\right) \\
& \begin{array}{llll}
\text { 1) } 120 \Omega & \text { 2) } 15 \Omega & \text { 3) } 60 \Omega & \text { 4) } 210 \Omega
\end{array}
\end{aligned}\)

268477 Theequivalent resistance across \(X Y\) in fig.

268474 The resistance of a platinum wire of a platinum resistance thermometer at the ice point is\(5 \Omega\) and at steam point is \(5.4 \Omega\). When the thermometer is inserted in a hot bath, the resistance of the platinum wire is \(6.2 \Omega\). Find the temperature of the hot bath.

268475 Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio\(1: 2\) and if no resistance value is fractional, the largest of the three resistance in ohm is

268476 A carbon filament has resistance of\(120 \Omega\) at \(0^{\circ} \mathrm{C}\) what must be the resistance of a copper filament connected in series with carbon so that combination has same resistance at all temperatures
\(\begin{aligned}
& \left(\alpha_{\text {carton }}=-5 \times 10^{-4} /{ }^{\circ} \mathrm{C}, \alpha_{\text {copper }}=4 \times 10^{-3} /{ }^{\circ} \mathrm{C}\right) \\
& \begin{array}{llll}
\text { 1) } 120 \Omega & \text { 2) } 15 \Omega & \text { 3) } 60 \Omega & \text { 4) } 210 \Omega
\end{array}
\end{aligned}\)

268477 Theequivalent resistance across \(X Y\) in fig.

268474 The resistance of a platinum wire of a platinum resistance thermometer at the ice point is\(5 \Omega\) and at steam point is \(5.4 \Omega\). When the thermometer is inserted in a hot bath, the resistance of the platinum wire is \(6.2 \Omega\). Find the temperature of the hot bath.

268475 Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio\(1: 2\) and if no resistance value is fractional, the largest of the three resistance in ohm is

268476 A carbon filament has resistance of\(120 \Omega\) at \(0^{\circ} \mathrm{C}\) what must be the resistance of a copper filament connected in series with carbon so that combination has same resistance at all temperatures
\(\begin{aligned}
& \left(\alpha_{\text {carton }}=-5 \times 10^{-4} /{ }^{\circ} \mathrm{C}, \alpha_{\text {copper }}=4 \times 10^{-3} /{ }^{\circ} \mathrm{C}\right) \\
& \begin{array}{llll}
\text { 1) } 120 \Omega & \text { 2) } 15 \Omega & \text { 3) } 60 \Omega & \text { 4) } 210 \Omega
\end{array}
\end{aligned}\)

268477 Theequivalent resistance across \(X Y\) in fig.

268474 The resistance of a platinum wire of a platinum resistance thermometer at the ice point is\(5 \Omega\) and at steam point is \(5.4 \Omega\). When the thermometer is inserted in a hot bath, the resistance of the platinum wire is \(6.2 \Omega\). Find the temperature of the hot bath.

268475 Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio\(1: 2\) and if no resistance value is fractional, the largest of the three resistance in ohm is

268476 A carbon filament has resistance of\(120 \Omega\) at \(0^{\circ} \mathrm{C}\) what must be the resistance of a copper filament connected in series with carbon so that combination has same resistance at all temperatures
\(\begin{aligned}
& \left(\alpha_{\text {carton }}=-5 \times 10^{-4} /{ }^{\circ} \mathrm{C}, \alpha_{\text {copper }}=4 \times 10^{-3} /{ }^{\circ} \mathrm{C}\right) \\
& \begin{array}{llll}
\text { 1) } 120 \Omega & \text { 2) } 15 \Omega & \text { 3) } 60 \Omega & \text { 4) } 210 \Omega
\end{array}
\end{aligned}\)

268477 Theequivalent resistance across \(X Y\) in fig.