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Physics, 18.05.2021 14:00 hwk4102

(b) Figure 2 shows how a bimetallic strip can be used in a simple alarm system Hol Battery
Contacts
Alarm bell
Bimetallic
strip
Fig: 3
Heat source
(i) Explain briefly how it works
(04 mar
What is the effect of increasing the distance between the contacts? (01

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(b) Figure 2 shows how a bimetallic strip can be used in a simple alarm system Hol Battery
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