Understanding Parallel Circuits

The video tutorial explains how to calculate the current in parallel circuits using Ohm's Law. It starts with a simple example of two resistors connected in parallel to a 12-volt battery, calculating the current through each resistor and the total current. The tutorial then progresses to a more complex example with three resistors and a 30-volt battery, demonstrating the same principles. Finally, it covers a conceptual understanding of current distribution in parallel circuits and derives a formula for calculating current through individual resistors.

What is the total current flowing from a 12V battery connected to two resistors of 6 ohms and 4 ohms in parallel?

• 6 Amps

• 3 Amps

• 2 Amps

• 5 Amps

In a parallel circuit with a 30V battery and resistors of 5 ohms, 6 ohms, and 10 ohms, what is the current through the 5 ohm resistor?

• 3 Amps

• 10 Amps

• 5 Amps

• 6 Amps

How much current flows through a 6 ohm resistor in a parallel circuit with a 30V battery?

• 5 Amps

• 10 Amps

• 3 Amps

• 6 Amps

What is the total current leaving the battery in a parallel circuit with resistors of 5 ohms, 6 ohms, and 10 ohms connected to a 30V battery?

• 14 Amps

• 13 Amps

• 12 Amps

• 11 Amps

If a total current of 6 Amps flows through two parallel resistors of 5 ohms and 10 ohms, what is the current through the 5 ohm resistor?

• 5 Amps

• 4 Amps

• 3 Amps

• 2 Amps

In a parallel circuit with two resistors, if the resistance of one is half of the other, how does the current through the lower resistance compare?

• Three times

• Twice

• Equal

• Half

What formula can be used to calculate the current through a resistor in a parallel circuit with known total current and resistances?

• I1 = R2/(R1+R2) * It

• I = V/R

• I = P/V

• V = IR

In a parallel circuit, if the total current is 6 Amps and the resistances are 5 ohms and 10 ohms, what is the current through the 10 ohm resistor?

• 4 Amps

• 3 Amps

• 2 Amps

• 1 Amp

How is the voltage across resistors in parallel related?

• Different for each

• Same for all

• Depends on resistance

• Depends on current

What is the relationship between resistance and current in a parallel circuit?

• Equal

• Inversely proportional

• Directly proportional

• No relation