Question

3. Find the Norton's equivalent circuit at terminals a and b for the circuit shown below. 822 3 42 2A +) 12 V

Answer 1

882 Me 2A 0 $42 VVV 9 6 12v b 82 Norton equivalent circuit is Here in is Norton current and Ry is the Norton equivalent Resistence arrass or seen from point and b. Step :-/ Let first find out RN as to find Rn each voltage souree replace with its internal Resistence, here voltage source his negligible interneel Resistance so it alt as short circuit and current source alt as open circuit LLutz 1 Step:2 are in series and parallel with here 82,412.882 Resistence that tobel Resistence is in 82 Resistance RN = 511 (8+4 +8 ) - 511020) is 5X20 2015 RN = 12

STEP 23 IN= ? + 12v Sub to find In we have to shart the terminal a ab us ab terminal Short 52 Resistance act like a Open ciscuit as current how through low resistance puth only srep:-4 new ciscwt is : IN 12V 82 -O from the above circuit 12 = 40 + (575) In IN = 2ti, .:12 = 411+ RG IN 12- 4 CIN-2) +16 IN 12 2 410-8 + 16 IN .: 20114 = 20 IN = 1 A .. Summary: equivalent Norton circuit is SA os Rub here across Reb is a&B the Resistance point.