Dc Circuit Flashcards
What does DC stand for in DC Circuit?
Direct Current
True or False: In a DC circuit, the current flows in one direction only.
True
Fill in the blank: The unit of electrical resistance is the ______.
Ohm
What is the formula for Ohm’s Law?
V = I * R
Multiple Choice: What is the primary component that stores energy in a DC circuit?
Capacitor
What does a resistor do in a DC circuit?
It limits the flow of electric current.
True or False: A series circuit has multiple paths for current to flow.
False
What is the total resistance in a series circuit with three resistors of 2 Ohms each?
6 Ohms
Fill in the blank: In a parallel circuit, the voltage across each component is ______.
the same
Multiple Choice: Which law states that the total current entering a junction equals the total current leaving the junction?
Kirchhoff’s Current Law
What is the purpose of a fuse in a DC circuit?
To protect the circuit from overcurrent.
True or False: In a parallel circuit, the total resistance decreases as more resistors are added.
True
What happens to the total current in a series circuit when additional resistors are added?
The total current decreases.
Fill in the blank: The device that converts electrical energy into mechanical energy is called a ______.
motor
Multiple Choice: Which component is used to measure current in a circuit?
Ammeter
What is the relationship between voltage, current, and power in a DC circuit?
P = V * I
True or False: A voltmeter is used to measure voltage across a component.
True
What is the effect of increasing the resistance in a DC circuit while keeping voltage constant?
The current decreases.
Fill in the blank: The electrical energy stored in a capacitor is known as ______.
capacitance
Multiple Choice: Which type of circuit has a single path for current?
Series Circuit
What does the term ‘ground’ refer to in a DC circuit?
A reference point for voltage, typically connected to the earth.
True or False: In a DC circuit, the power dissipated by a resistor can be calculated using P = I^2 * R.
True
What is the primary function of a diode in a DC circuit?
To allow current to flow in one direction only.
Fill in the blank: The total voltage in a series circuit is equal to the ______ of the individual voltages.
sum
