ExamPlay Light Logo
Pierakstīties

Physics for IGCSE & O level - Electricity (Section 5 - No. 20)

If a lightbulb uses 100J of energy every second, what is its power?
100 Watts
100 Amperes
100 Volts
100 Ohms

Paskaidrojums

Power is energy per second, so 100J/s = 100W.

komentāri (0)

Reklāma