DP Physics (last assessment 2024)
Question 21M.2.HL.TZ1.c.i
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 ✓
