USP_Parallel Circuit

What is a parallel circuit?

• A circuit that connects the electrical components in a single branch

• A circuit with only one path for the current to flow

• A circuit with no path for the current to flow

• A circuit that connects the electrical components in two or more branches

What is the formula for combined resistance in a parallel circuit?

• R_T = R₁ x R₂

• R_T = R₁ + R₂

• 1/R_T = 1/R₁ + 1/R₂

• 1/R_T = R₁ + R₂

How does the combined resistance in a parallel circuit compare to the individual resistances?

• It is equal to the sum of the individual resistances

• It is equal to the average of the individual resistances

• It is greater than the greatest of the individual resistances

• It is smaller than the smallest of the individual resistances

What is the formula for total current in a parallel circuit?

• I_T = I₁ - I₂

• I_T = I₁ / I₂

• I_T = I₁ x I₂

• I_T = I₁ + I₂

How are ammeters connected in a parallel circuit?

What is the relationship between e.m.f. and voltage in a parallel circuit?

• They are inversely proportional

• They are equal

• There is no relationship

• They are directly proportional

How are voltmeters connected in a parallel circuit?

What is the purpose of a parallel circuit?

• To increase the resistance

• To provide multiple paths for the current to flow

• To limit the current flow

• To decrease the voltage

What happens to the total resistance in a parallel circuit as more resistors are added?

• It decreases

• It increases

• It remains the same

• It becomes zero

What is the unit of resistance?

• Coulomb (C)

• Ohm (Ω)

• Volt (V)

• Ampere (A)