DP Physics (last assessment 2024)

Question 20N.1.SL.TZ0.19

Date	November 2020	Marks available	[Maximum mark: 1]	Reference code	20N.1.SL.TZ0.19
Level	SL	Paper	1	Time zone	TZ0
Command term		Question number	19	Adapted from	N/A

19.

[Maximum mark: 1]

20N.1.SL.TZ0.19

An electric motor raises an object of weight $500 N$ through a vertical distance of $3.0 m$ in $1.5 s$ . The current in the electric motor is $10 A$ at a potential difference of $200 V$ . What is the efficiency of the electric motor?

A. $17 %$

B. $38 %$

C. $50 %$

D. $75 %$

[1]

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Core

Core » Topic 5: Electricity and magnetism » 5.2 – Heating effect of electric currents

Core » Topic 2: Mechanics » 2.3 – Work, energy, and power

Core » Topic 2: Mechanics

Core » Topic 5: Electricity and magnetism

Question 20N.1.SL.TZ0.19

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