IIT JEE , AIEEE Forum - Physics , Electricity

nishant_delhi

Wht exactly happens when we earth a charged substance.

for ex. here A is +vely charged B get some induced charge due to A.

AFTER EARTHING -ve charge remains on B due to attraction by A &+ve charge goes to earth.

the ques. is wht does it exactly mean , do electons goes in earth or wht ??

varun.tinkle

SEE U MOST KNOW THIS BASIC CONCEPT THAT WHEN 2 OBJECTS ARE CONNECTED BY A WIRE THERE POTENTIAL IS EQUAL
CONVENTIALLY WE TAKE EARTH TO BE AT 0 POTENTIAL . SO BOTH THE OBJECT WHICH U ARE CNNECTING AND THE EARTH WILL BE AT O SO THE CHARGE WILL BE 0
THE CONCEPT IN THE ARGUMENT IS THAT U ARE ONLY CONNECTING THE POSITIVE SIDE OF THE PLATE B OF THE CAPAC SO ONLY THAT GETS EARTHED AND THE OTHER SIDE REMAINS WITH THE SAME CHARGE
PLZ RATE ME IF U FIND ME USEFUL
!!!!!!!!CHEERS!!!!!!!

indrajeet_bariar

WE ALL KNOW THT WHEN TWO DIFFERENT POINTS KEPT AT DIFFERENT POTENTIAL ARE CONNECTED BY A WIRE, POSITIVE CHARGE STARTS FLOWING FROM LOWER POTENTIAL TO HIGHER POTENTIAL THEREBY INCREASING THE POTENTIAL OF OTHER BODY UNTILL THE POTENTIAL OF BOTH THE POINTS BECOME EQUAL.NOW POTENTIAL OF EARTH IS ALWAYS TAKEN AS ZERO( ACTUALLY A REFERENCE POTENTIAL, ITS NOT ACTUALLY ZERO). NOW WHEN U CONNECT A +VELY CHARGED BODY TO EARTH, THEN POSITIVE CGARGE FLOWS FROM BODY TO EARTH AS THE RULE SAYS.BUT WE ALL KNOW THT THERE IS NOTHING LIKE FLOW OF POSITIVE CHARGE.ACTUALLY ELECTRONS FLOW FROM EARTH TO CHARGED BODY THEREBY REDUCING ITS POTENTIAL UNTILL ITS POTENTIAL BECOMES ZERO(EQUAL TO POTENTIAL OF EARTH).THTS WHY WE ALWAYS TAKE THE POTENTIAL OF AN EARTHED BODY TO BE ZERO. THST IS WHT HAPPENS IN EARTHING.
PLZ.. RATE IF SATISFIED WITH THE ANSWER

Ask & Discuss Questions with Community & Experts