A. | (\(0\) to \(1~\text A\)) ranged ammeter. |
B. | (\(0\) to \(100~\text {mA}\)) ranged milli-ammeter. |
C. | (\(0\) to \(500~\mu\text A\)) ranged micro-ammeter. |
D. | (\(0\) to \(100~\text V\)) ranged voltmeter. |
1. | A > B > C > D | 2. | D > C > B > A |
3. | D > A > B > C | 4. | C > B > A > D |
1. | \((3\times 10^{-1})^\circ \text{C}^{-1}\) | 2. | \((3 \times 10^{-4})^\circ \text{C}^{-1}\) |
3. | \((3 \times 10^{-3})^\circ \text{C}^{-1}\) | 4. | \((3 \times 10^{-2})^\circ \text{C}^{-1}\) |
1. | \(81\) \(\Omega\) | 2. | \(9\) \(\Omega\) |
3. | \(729\) \(\Omega\) | 4. | \(243\) \(\Omega\) |
The plot of current \(I~\text{(A)}\) flowing through a metallic conductor versus the applied voltage \(V~\text{(volt)}\) across the ends of a conductor is:
1. | 2. | ||
3. | 4. |
1. | reactance | 2. | mobility |
3. | conductivity | 4. | conductance |
Which of the following graph represents the variation of resistivity () with temperature (\(T\)) for copper?
1. | 2. | ||
3. | 4. |
Two solid conductors are made up of the same material and have the same length and the same resistance. One of them has a circular cross-section of area and the other one has a square cross-section of area . The ratio is:
1. | \(1.5\) | 2. | \(1\) |
3. | \(0.8\) | 4. | \(2\) |