Practical Circuits

The voltmeter reading is ___ V

When the resistance of AX is 6 ohms and the resistance of XB is 4 ohms, the voltmeter reading is ___ V

See the diagram. The e.m.f. of the battery is 14 V. The minimum p.d. across the fixed resistor is ___ V

The terminal p.d. = ___ V

This graph shows the variation of p.d. across a cell with the current in it. The internal resistance of the battery = ___ ohms

The emf of cell A = 6.0 V.

The resistance of the wire = 10 ohms.

The resistance of R = 90 ohms.

The p.d. across the resistance wire = ___ V

The emf of cell A = 6.0 V.

The resistance of the wire = 10 ohms.

The resistance of R = 90 ohms.

The length of L = 0.50 m.

VB = ___ V

The emf of cell A = 6.0 V.

The resistance of the wire = 10 ohms.

The length of L = 0.50 m.

VB = 0.020 V

The resistance of R = ___ ohms.