Circuits - the Basics

Question 1

Do the paper flashcards on circuit symbols

Answer 1

They’re in the study

Question 2

Standard test circuit:

Describe the ammeter

Answer 2

1) Measures the current (in amps) flowing through the component
2) Must be placed in series
3) Can be put anywhere in series in the main circuit

Question 3

Standard test circuit:

Describe the voltmeter

Answer 3

1) Measure the p.d (in volts) across the component

2) Must be placed in parallel around the component under test

Question 4

Describe and DRAW the Standard test circuit

Answer 4

pg 101 - Physics Revision Guide

|—————Cell—————|
| Variable Resistor
| |
|—Component—–|—Ammeter
| |
|—–Voltmeter——|

Question 5

What is the Standard test circuit used for?

Answer 5

Testing components and for getting V-I graphs from them

Question 6

Standard test circuit:

Which components are is series? Which means…

Answer 6

The ammeter, variable resistor and the component so they can be put in any order in the main circuit

Question 7

What happens when you vary the variable resistor?

Answer 7

It alters the current flowing through the circuit