Electric Current, Voltage, and Power Calculations Quiz

Which direction do electrons actually flow in an electric circuit?

What is the unit for electric charge?

What is the correct definition of electric current?

What is the relationship described by Ohm's Law?

How does increasing voltage affect current in a circuit?

The unit for electric current is the ______

Electric current flows from the ______ terminal to the negative terminal according to conventional current

Increasing the resistance in a circuit will ______ the current

What is the SI unit of resistance?

An electron has a charge of 1.6 x 10^-19 ______

Ohm's Law describes the relationship between voltage (V), current (I), and ______

Calculations involve determining electric charge passing through a circuit, the number of electrons representing that charge, current passing through a ______

Electric power is the product of voltage and ______

Power is measured in ______

Voltage of the motor is 125 volts, with a current of 0.4 amps, leading to an internal resistance of 312.5 ______ using Ohm's law

Increasing the voltage in a circuit will increase the ______

Electric current flows from the positive terminal to the negative terminal according to conventional current, but in reality, electrons flow from the negative terminal to the positive terminal.
Current is defined as the rate of charge flow, calculated as charge divided by time (I = ΔQ/Δt). The unit for current is the ampere (amp).
Electric charge is measured in coulombs, with 1 ampere being equal to 1 coulomb per second. An electron has a charge of 1.6 x 10^-19 coulombs.
Ohm's Law describes the relationship between voltage (V), current (I), and resistance (R) as V = IR. Resistance is measured in ohms.
Increasing the voltage in a circuit will increase the current, while increasing the resistance will decrease the current. Voltage and current are directly related, while resistance and current are inversely related.
Electric power is the product of voltage and current, with three forms of the equation: P = VI, P = I^2 * R, and P = V^2 / R. Power is measured in watts.
In problem-solving scenarios, calculations involve determining electric charge passing through a circuit, the number of electrons representing that charge, current passing through a resistor, power dissipated by a resistor, power delivered by a battery, electrical resistance of a component, energy consumption, and operating costs.- Voltage of the motor is 125 volts, with a current of 0.4 amps, leading to an internal resistance of 312.5 ohms using Ohm's law.
A charge of 12.5 coulombs flows through a 5 kilo ohm resistor in 8 minutes, resulting in an electric current of 0.026 amps (26 milliamps) when converted to seconds.
The power consumed by the resistor is calculated to be 3.38 watts using the equation P = I^2 * R with current as 0.026 amps and resistance as 5 kilo ohms (5000 ohms).
The voltage across the resistor is determined to be 130 volts by multiplying the current of 0.026 amps with the resistance of 5000 ohms.

Test your knowledge on electric current, voltage, power, and Ohm's Law with this quiz covering concepts such as current flow direction, charge measurement, Ohm's Law equation, power calculations, and problem-solving scenarios in circuits.