Current Electricity

Electric current is the rate

Electric current is the rate of flow of electric charge through a conductor. It is calculated as I = Q/t, where Q is charge and t is time. Current flo

Primary cells (like dry cells) provide

Primary cells (like dry cells) provide current through irreversible chemical reactions and cannot be recharged. Secondary cells (like lead accumulator

Conventional current flows from positive

Conventional current flows from positive to negative terminal (high to low potential) while electron flow is from negative to positive terminal. Conve

Potential difference is the work done

Potential difference is the work done in transferring unit positive charge from one point to another. It is calculated as V = W/Q, where W is work don

Resistance is the obstruction offered

Resistance is the obstruction offered to current flow by a conductor. It depends on material, length, cross-sectional area, and temperature of the con