OCR
A Level
https://www.coursehero.com/file/61943943/AS-Physics-Electrical-Quantities-Questions-OCRpdf/
, 1. This question is about the variation of quantities such as current, voltage and resistance in simple
electrical circuits containing a variety of standard components.
Total for Question 1: 9
Figure 1: I-V characteristics for three different circuit components.
(a) State Ohm’s Law. [1]
(b) Assign one of the following components to each of the characteristic graphs in Figure 1: filament [3]
lamp, semiconductor diode, resistor.
(c) Why have these been plotted on graphs of current against potential difference rather than current [1]
against electromotive force?
(d) For the diode, state the value of the resistance when a backward bias is applied. [1]
Page 2
This study source was downloaded by 100000832361371 from CourseHero.com on 04-05-2022 14:43:11 GMT -05:00
https://www.coursehero.com/file/61943943/AS-Physics-Electrical-Quantities-Questions-OCRpdf/
A Level
https://www.coursehero.com/file/61943943/AS-Physics-Electrical-Quantities-Questions-OCRpdf/
, 1. This question is about the variation of quantities such as current, voltage and resistance in simple
electrical circuits containing a variety of standard components.
Total for Question 1: 9
Figure 1: I-V characteristics for three different circuit components.
(a) State Ohm’s Law. [1]
(b) Assign one of the following components to each of the characteristic graphs in Figure 1: filament [3]
lamp, semiconductor diode, resistor.
(c) Why have these been plotted on graphs of current against potential difference rather than current [1]
against electromotive force?
(d) For the diode, state the value of the resistance when a backward bias is applied. [1]
Page 2
This study source was downloaded by 100000832361371 from CourseHero.com on 04-05-2022 14:43:11 GMT -05:00
https://www.coursehero.com/file/61943943/AS-Physics-Electrical-Quantities-Questions-OCRpdf/
