CPE 424 Midterm Examination

The unit of electric current is:

• ampere (A)

• volt (V)

• ohm (Ω)

• watt (W)

In a parallel circuit, the total voltage is:

• equal to the sum of the voltages across each component

• the same across all parts of the circuit

• dependent on the current

• both (a) and (b)

The relationship between voltage (V), current (I), and resistance (R) is described by:

• V = IR

• I = VR

• R = VI

• I = V/R

A circuit with multiple paths for current to flow is called a:

• parallel circuit

• series circuit

• open circuit

• closed circuit

What is the formula to calculate the total resistance of resistors in parallel?

• R_total = R1 + R2

• R_total = R1 * R2

• 1/R_total = 1/R1 + 1/R2

• R_total = R1 / R2

When calculating the total current in a parallel circuit, what should be done with the individual branch currents?

• Add them

• Multiply them

• Divide them

• Subtract them

In a series circuit, the total current is:

• Equal to the sum of currents through each component

• Less than the current through any one component

• The same across all components

• Data insufficient

The total voltage in a parallel circuit is:

• Equal to the sum of voltages across each component

• Less than the voltage across any one component

• The same across all components

• Data insufficient

Ohm's Law states the relationship between:

• Voltage and current only

• Voltage and resistance only

• Current and resistance only

• All three (voltage, current, resistance)

In a parallel circuit, the total resistance is:

• Equal to the sum of resistances of each component

• Less than the resistance of any one component

• Greater than the resistance of any one component

• Data insufficient