1) whats the eqaution which defines the CURRENT flow in an electrical circuit in terms of CHARGE & TIME?
is it Q/IxT or I/QXT?
2) whats the equation which defines the RESISTANCE of a circuit in terms of CURRENT & POTENTIAL DIFFERENCE?
is it P/IxV or V/IxR?
3) car headlap takes a CURRENT of 450mA. how much CHARGE passed through the lamp when using during a 40min journey at night?
is it 0.45 A? x 40 mins? =