What in a circuit diagram represents a battery?

What in a circuit diagram represents a battery?

• A. Battery
• B. Resistor
• C. Switch
• D. Light bulb

Answer: (A)

Recognizing the energy source in a circuit diagram is what this item is about. In circuit drawings, a battery is shown as two parallel lines of different lengths, repeated for each cell in the bank. The longer line marks the positive terminal and the shorter line the negative, and multiple cells together form the battery that supplies electrical energy to the circuit. This symbol identifies the power source that drives current through the components. The other elements have different roles: a resistor dissipates energy as heat, a switch controls whether current can flow, and a light bulb converts electrical energy into light. So the symbol representing the energy source is the battery.

Recognizing the energy source in a circuit diagram is what this item is about. In circuit drawings, a battery is shown as two parallel lines of different lengths, repeated for each cell in the bank. The longer line marks the positive terminal and the shorter line the negative, and multiple cells together form the battery that supplies electrical energy to the circuit. This symbol identifies the power source that drives current through the components. The other elements have different roles: a resistor dissipates energy as heat, a switch controls whether current can flow, and a light bulb converts electrical energy into light. So the symbol representing the energy source is the battery.