SKEE 1013 - Basic Laws

What is the correct formula for Ohm’s Law?

• V = I + R

• V = I × R

• V = I ÷ R

• V = R × I²

(KVL) In a closed loop, the total of all voltage sources is equal to:

• The sum of voltage drops

• The total current

• The sum of resistances

• The power in the circuit

At any junction, the sum of currents flowing into the junction is

• Zero

• Equal to the sum of currents flowing out

• Greater than the currents flowing out

• Less than the currents flowing out

If you increase the resistance in a circuit while keeping the voltage constant, what happens to the current?

• It decreases

• It increases

• It stays the same

• It doubles

If the voltage across a resistor is 10 V and the resistance is 5 Ω, what is the power dissipated?

• 10 W

• 20 W

• 25 W

• 50 W

Which statement is true for a parallel circuit?

• The total resistance is the sum of individual resistances

• The voltage is the same across all components

• The current is the same through all components

• None of the above

In a series circuit, the total resistance is:

• The same as the largest resistor

• The sum of all resistances

• The inverse of the total resistances

• Equal to the voltage divided by current

What happens to the total resistance when you add more resistors in parallel?

• It increases

• It decreases

• It stays the same

• It depends on the resistances