EEUTI130 MIDTERM EXAM-A

How many electrons are in 1C of charge?

• 6.24 × 10¹⁸

• 6.24 × 10⁻¹⁸

• 1.602 × 10¹⁹

• 1.602 × 10⁻¹⁹

When charge flows from positive to negative terminal, it's called:

• Proton flow

• Electron flow

• Conventional flow

• Convenient flow

The total charge entering a terminal is given by q = 7t cos(t) C. Calculate current at t = 0.8s:

• 6.99 A

• 6.99 mA

• 11.19 A

• 11.19 mA

Determine the total charge entering a terminal between t = 2s and t = 7s if the current passing the terminal is i(t) = 3t^2 - 7t mA:

• -177.5 C

• 177.5 C

• -177.5 mC

• 177.5 mC

Which one is the correct equivalent of power?

• dw/dq

• dq/dw

• dw/dt

• dq/dt

A 15 mA current flows through a lightbulb for 12 minutes, releasing 1.2 kJ of energy. What is the voltage drop across the bulb?

• 0.11 V

• 111.1 V

• 6666.67 V

• 66.67 V

Total energy consumption in 30 days:

• 28.05 kWh

• 5.61 kWh

• 2.80 kWh

• 56.1 kWh

Total energy bill in 30 days:

• ₱196.35

• ₱346.35

• ₱189.27

• ₱939.27

Resistance approaches infinity in the case of:

• Series circuit

• Parallel circuit

• Open circuit

• Short circuit

It is the measure of how easily electric current flows through a material:

• Conductivity

• Conductance

• Resistivity

• Inductance