Question

Three charges are situated outside a closed surface. Charges are 5 μC ,

8 μC , -6 μC . Total normal electric induction over the closed surface is…

a) 7 μC b) 19 μC c) 6 μC d) 9 μC​

Answer 1

Answer:-

• C1=5μC
• C2=8μC
• C3=-6μC

We know that

$\boxed{\sf Total\:induction=C_1+C_2+C_3}$

$\\ \sf\longmapsto Total\:induction=5+8+(-6)$

$\\ \sf\longmapsto Total \:induction=13-6$

$\\ \sf\longmapsto Total\:induction=7\mu C$

Option a is correct.

Answer 2

Answer:

Option a) Total normal electric induction over the closed surface is 7μC.

Explanation:

• Total Normal Induction: The total number of lines of induction leaving a surface normally is called total normal induction.

As per the question the given charges are:

C1=5μC

C2=8μC

C3=-6μC

We know that,

Total normal electric induction over the closed surface is given by

C= C1+C2+C3

∴ C= 5μC+8μC-6μC

C= 13μC-6μC

C=7μC

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