Analyzing Circuit Resistance and Current Flow in Electrical Systems

The video tutorial explains how to calculate the equivalent resistance of a circuit with resistors in parallel and series. It covers the calculation of total current using Ohm's Law and discusses the distribution of current through different resistors. The tutorial also demonstrates how to calculate the voltage across resistors and the power absorbed by each resistor, ensuring the power delivered by the battery matches the total power absorbed, in line with the conservation of energy.

What is the role of the battery in the circuit described?

• To provide resistance

• To increase resistance

• To decrease current

• To supply voltage

How are the 20 ohm and 5 ohm resistors connected in the circuit?

• In a loop

• Neither in series nor in parallel

• In parallel

• In series

What is the total equivalent resistance of the circuit?

• 10 ohms

• 4 ohms

• 6 ohms

• 20 ohms

Using Ohm's Law, how is the total current in the circuit calculated?

• Voltage divided by resistance

• Resistance divided by voltage

• Current times resistance

• Voltage times resistance

What is the total current flowing through the circuit?

• 3 amps

• 2 amps

• 4 amps

• 1 amp

Which resistor will have more current flowing through it, the 5 ohm or the 20 ohm resistor?

• 5 ohm resistor

• Both have the same current

• Neither has current

• 20 ohm resistor

What is the voltage across the 6 ohm resistor?

• 20 volts

• 8 volts

• 6 volts

• 12 volts

How much power is absorbed by the 20 ohm resistor?

• 40 watts

• 24 watts

• 12.8 watts

• 3.2 watts

What is the power delivered by the battery?

• 50 watts

• 40 watts

• 30 watts

• 20 watts

How does the power delivered by the battery compare to the total power absorbed by the resistors?

• It is unrelated

• It is less

• It is more

• It is equal