In the given circuit diagram, calculate:
302
112
B
392
222
E
D
32
30
6) Total resistance between the points B and E.
(ii) Total resistance between the points A and F.
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The resistivity's of some substances are given below:
Material
А
B
C
D
E
Resistivity (m) 1.6x10 6.4x10* 10x10*
96 x 10
100x10
Answer the following questions in relation to them giving justification for each:
D Which material is best for making connecting cords?
ii) Which material do you suggest to be used in beater elements?
iii) You have two wires of same length and same thickness. One is made of material A and another
of material D. If the resistance of wire of A is 2 Q. what is the resistance of the other wire?
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