Ohm's Law Triangle

According to Ohm's law triangle, what is the formula to calculate Voltage (V)? Fill in the blank: V = ___ × ___

• I × R

• R × V

• I × V

• R × I

According to Ohm's law triangle, what is the formula to calculate Current (I)? Fill in the blank: I = ___ / ___

• V / R

• R / V

• V / I

• I / R

According to Ohm's law triangle, what is the formula to calculate Resistance (R)? Fill in the blank: R = ___ / ___

• V / I

• I / V

• V x I

• I x V

What does Ohm's Law define?

• Ohm's Law defines the relationship between voltage, current, and resistance.

• Ohm's Law defines the relationship between power, energy, and time.

• Ohm's Law defines the relationship between frequency, wavelength, and amplitude.

• Ohm's Law defines the relationship between force, mass, and acceleration.

These basic electrical units apply to:

• Direct current only

• Alternating current only

• Both direct current and alternating current

• None of the above

Ohm's Law is the foundation of electronics and electricity.

• True

• False

Why is it important for electricians to understand Ohm's Law ?

• Without a thorough understanding of Ohm's Law, an electrician cannot design or troubleshoot even the simplest of electronic or electrical circuits.

• It helps electricians memorize the color codes of wires.

• It allows electricians to avoid using any measuring instruments.

• It enables electricians to work only with alternating current circuits.

Who established Ohm's Law and in which era?

• Ohm established Ohm's Law in the late 1820s.

• Newton established Ohm's Law in the 1700s.

• Faraday established Ohm's Law in the early 1900s.

• Tesla established Ohm's Law in the mid 1800s.

Fill in the blank: If a voltage is applied to a resistance, then ______ would flow and then power would be consumed.

• current

• heat

• light

• sound

Voltage is measured in ________, symbolized by the letter "V".

• volts

• amperes

• watts

• ohms

Tags

NGSS.MS-PS3-2