Components, e.g. bulbs, in electrical circuits can be connected in series or in parallel.
(i) It is noticed that, when one headlight fails (blows) in a car, the se... show full transcript
Worked Solution & Example Answer:Components, e.g - Junior Cycle Science - Question (b) - 2006
Step 1
State the way the headlights are connected
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The headlights are connected in parallel.
Step 2
Reason
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This mode of connection is used for safety; if one bulb blows, the other stays on. In a parallel connection, both bulbs can operate independently of each other.
Step 3
What way?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The bulbs are connected in series.
Step 4
Explain
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In a series connection, the circuit is broken when one bulb fails, which causes all the bulbs to go out.
Step 5
Resistance
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The resistance of the filament of the car headlamp is calculated using Ohm's law:
R=IV=5 A12 V=2.4 Ohm
Step 6
Unit of resistance
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Ohm/ Ω
Join the Junior Cycle students using SimpleStudy...
