Skip to content
1. what does a step-down transformer do
- it decreases the p.d
- it increases the p.d
1 of 12
Other questions in this quiz
2. what is a live wire
- connected directly to the generators (blue)
- connected directly to the generators (brown)
- connected directly to the generators (yellow/green)
3. what's a neutral wire
- it returns the electricity (brown)
- it returns the electricity (blue)
- it returns the electricity (yellow/green)
4. Efficiency equation
- total energy input divided by useful energy output x 100
- useful energy output divided by total energy input x 100
- total energy input divided by useful energy output
- useful energy output divided by total energy input
5. power equation using current and resistance
- current divided by resistance
- resistance divided by current
- current squared x resistance
- current x resistance
Comments
No comments have yet been made