What type of electric charge does a proton possess?

$A$ piece of wire having resistance $R$ is cut into four equal parts. $(a)$ How will the resistance of each part compare with the original resistance? $(b)$ If the four parts are placed in parallel,how will the joint resistance compare with the resistance of the original wire?

An electric heater rated $600 \ W$ operates $6$ hours per day. Find the cost to operate it for $30$ days at ₹ $3.00$ per unit.

If $1800\,C$ of charge passes through an electric bulb in $1$ hour, what is the current flowing through the bulb (in $A$)?

According to Ohm's law,which of the following statements is correct?

If a wire of resistance $R$ is melted and recast to half of its length,then the new resistance of the wire will be