Ten questions. The result tells you which lessons you may skip.
Resistors of \(3\,\Omega\) and \(6\,\Omega\) are joined in parallel. Their equivalent resistance is
A uniform wire of \(8\,\Omega\) is folded in half and the halves twisted together. Its resistance becomes
A Wheatstone bridge has arms \(P = 2\,\Omega\), \(Q = 4\,\Omega\), \(R = 3\,\Omega\). It is balanced when \(S\) is
A uniform ring of wire of \(16\,\Omega\) is joined at the two ends of a diameter. The resistance between them is
Kirchhoff's junction rule follows from the conservation of
Walking through a cell from its positive terminal to its negative terminal, the change in potential is
A \(12\,\text{V}\) cell and a \(3\,\text{V}\) cell oppose each other in one loop with \(2\,\Omega\) and \(4\,\Omega\). The current is
A \(12\,\text{V}\) and a \(6\,\text{V}\) cell, \(1\,\Omega\) each, are joined with like terminals together across a \(4\,\Omega\) load. The voltage across the load is
A capacitor charges through a resistor with \(\tau = 1\,\text{s}\). After \(1\,\text{s}\) its charge is about
A capacitor is fully charged from a battery through a resistor. The heat produced in the resistor is