What type of electric charge does a proton possess?

Define one watt hour.

Read the following statements carefully and state whether each statement is true or false:
$(i)$ The quantity of charge flowing past a point multiplied by time is current.
$(ii)$ The flow of charge through a conducting wire connected to a cell is the result of a chemical reaction inside the cell.
$(iii)$ The resistivity of all pure metals increases with an increase in temperature.
$(iv)$ Ohm's law is a relation between the power used in a circuit to the current and the potential difference.
$(v)$ $A$ series circuit has only one conducting path for the electrons that move through it; a parallel circuit has multiple conducting paths.
$(vi)$ $A$ conducting wire offers resistance to the flow of electrons because electrons repel each other in the wire.

The flow of charge through a conducting wire connected to a cell is the result of chemical reaction inside the cell.

$A$ bulb gets dimmer for a moment when a geyser,connected across the same source,is switched on. Why?

How can we measure the current in a circuit?