Power Ratings (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What does the power rating of an appliance indicate?
What does the power rating of an appliance indicate?
The maximum power it can safely use
What does power rating tell us about energy transfer?
What does power rating tell us about energy transfer?
The maximum energy per second
Does a higher power rating mean more useful energy is transferred?
Does a higher power rating mean more useful energy is transferred?
No, not necessarily
Can a high power appliance be less efficient than a low power one?
Can a high power appliance be less efficient than a low power one?
Yes, it can be
Which equation calculates energy from charge and potential difference?
Which equation calculates energy from charge and potential difference?
In , what is the unit of ?
In , what is the unit of ?
Coulombs (C)
Which equation calculates power from voltage and current?
Which equation calculates power from voltage and current?
In , what is the unit of ?
In , what is the unit of ?
Watts (W)
Which equation calculates power from current and resistance?
Which equation calculates power from current and resistance?
When would you use instead of ?
When would you use instead of ?
When potential difference is unknown
In , what is the unit of ?
In , what is the unit of ?
Ohms (Ω)