Podcast
Questions and Answers
In a parallel plate capacitor, what separates the metal plates?
In a parallel plate capacitor, what separates the metal plates?
- Tantalum
- Ceramic
- Aluminium oxide
- Air (correct)
Which of the following is NOT an effect of electric currents?
Which of the following is NOT an effect of electric currents?
- Heating effects
- Chemical effects
- Magnetic effects
- Photoelectric effects (correct)
What does an ammeter measure?
What does an ammeter measure?
- Voltage
- Charge
- Resistance
- Electric current (correct)
What does the equation Q = CV represent?
What does the equation Q = CV represent?
Which device is used to quickly cut off current in the event of a fault in an appliance?
Which device is used to quickly cut off current in the event of a fault in an appliance?
kWh is the unit of energy used by a 1,000-watt appliance in how long?
kWh is the unit of energy used by a 1,000-watt appliance in how long?
$Joule's$ Law indicates that heat production in an electrical circuit is proportional to what?
$Joule's$ Law indicates that heat production in an electrical circuit is proportional to what?
$Capacitors$ are capable of conducting which type of current but not the other?
$Capacitors$ are capable of conducting which type of current but not the other?
What is the formula for work according to Joule's Law?
What is the formula for work according to Joule's Law?
Which device is used to convert chemical or mechanical energy into electrical energy?
Which device is used to convert chemical or mechanical energy into electrical energy?
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