3 (a) Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 3 - 2017 - Paper 1
Question 3
3 (a) Complete the sentence by putting a cross (X) in the box next to your answer.
The unit of potential difference is the
☐ A amp
☐ B joule
☐ C volt
☐ D watt
... show full transcript
Worked Solution & Example Answer:3 (a) Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 3 - 2017 - Paper 1
Step 1
Complete the sentence by putting a cross (X) in the box next to your answer.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The unit of potential difference is the C volt.
Step 2
Choose words from the box to complete the sentence.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Electrical energy is transmitted at high voltages,
because it improves the efficiency by reducing
heat loss in the transmission lines.
Step 3
Calculate the input power of the transformer. State the unit.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To calculate the input power of the transformer, use the formula:
