19can be the last option,,,may be...first try !
A positive point charge Q is kept (as shown in the figure) inside a neutral conducting shell whose centre is at C. An external uniform electric field E is applied. Then which of the followings is/are incorrect:
force on Q due to E is zero.
net force on Q is zero.
net force acting on Q and conducting shell considered as a system is zero
net force acting on the shell due to E is zero.
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9 Answers
1since d shell is conducting,d charge Q will be distributed on d outer surface of d shell....n inside d shell d net force acting due to E will be zero....
is it d answer???
1Ans : Net force due to the shell is 0
Net force due to the field is QE
can anyone explain the reasons?
3The explanation will be like this.The field due to the given is E since we know dat the charges inside a conducting shell is zero the shell must provide a field of -E so dat net field on the charges is zero.
3its a concept will known as electrostatic shielding!!!!!!!!!!!!!!!!!!!!...