A battery or an emf device creates an electric force field that moves electrons through a circuit. The emf device has two terminals, a positive terminal called anode and negative terminal called cathode
Answer is A.
a. energy source
In a circuit, there is cell or battery. This is the energy source. The battery creates an electric force field which causes electrons to move through the circuit. The current moves from positive terminal to negative terminal of the battery.
Resistance opposes the current in the circuit. load is same as resistance. Metal wires are used to connect different components of a circuit.
The correct anwser is A!
oa. energy sourc...