LONG QUIZ PRELIM

Who formulated Ohm’s Law in 1827?

• Nikola Tesla
• Georg Simon Ohm
• James Watt
• Michael Faraday

According to Ohm’s Law, current is proportional to voltage and inversely proportional to _____.

• Capacitance
• Resistance
• Inductance
• Power

Which equation represents Ohm’s Law for current?

• I = V/R
• V = IR
• R = V/I
• P = VI

If V=25V and R=5Ω, what is the current I?

• 2 A
• 5 A
• 10 A
• 125 A

What is the total resistance in series connection of three resistors R1=2Ω, R2=3Ω, R3=5Ω?

• 10Ω
• 2Ω
• 0.5Ω
• 30Ω

In a parallel circuit, the voltage across each branch is ____.

• Different
• Same as supply voltage
• Zero
• Half the supply voltage

In a series circuit, current is ____ across all components.

• Different
• Same
• Zero
• Double

Power in an electrical circuit is given by the formula ____.

• P = V/I
• P = VI
• P = I/R
• P = V²R

The unit of electrical resistance is ____.

• Ampere
• Volt
• Ohm
• Watt

If a lamp rated 60W, 120V is connected to a 120V supply, what current will it draw?

• 0.25 A
• 0.5 A
• 1 A
• 2 A