DP Physics (last assessment 2024)

Test builder »

Question 21M.2.HL.TZ1.c.i

Select a Test
Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.HL.TZ1.c.i
Level HL Paper 2 Time zone TZ1
Command term Describe Question number c.i Adapted from N/A
c.i.
[Maximum mark: 1]
21M.2.HL.TZ1.c.i

A device sends an impulse of electrical energy to maintain a regular heartbeat in a person. The device is powered by an alternating current (ac) supply connected to a step-up transformer that charges a capacitor of capacitance 30 μF.

 

The switch is moved to position B. 

Describe what happens to the energy stored in the capacitor when the switch is moved to position B.

[1]

Markscheme

the energy stored in the capacitor is delivered to the resistor/heart