important battery terms

Let us understand some fundamental terms necessary for the operation and functionality of batteries

	Current is a measure of the flow of electrons in a circuit. Electric current is measured in Amperes or Amps.
	The higher the current, the greater the flow of electrons.
	Current is measured with an Ammeter, which is placed in the circuit.
	Voltage is measured in Volts. It is a measure of the energy available, i.e. the higher the voltage, the more energy each electron is given. It is rather like the driving force that pushes electrons around the circuit.
	Current is measured with an Ammeter, which is placed in the circuit.
	1 Volt (V) is the force necessary to transmit 1 Ampere (A) of current against 1 Ohm (W) of Resistance.

 

	Resistance is a measure of the difficulty of the flow of electrons in a material.
	A battery has a fixed voltage, so the value of the current in a particular circuit depends on the resistance of that circuit.

 

	Ohms Law is the mathematical relationship between Voltage, Current and Resistance.
	Voltage (V) = Current (I) x Resistance (R) i.e. V = I x R.

 

Capacity to do work. Capacity can sometimes be rated in "Amp-hours" or "mah".

 

Rate, how fast the work gets done.