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11. (2)
12. (3)
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1 5 1
tell fast
i obviously know which option is ryt from the key....but dont know how to solve it
i don't know how to click a photograph
after giving the answer
In 12 ques the 1 ohm and 3 ohm resistor are in series therefore it will be 4 ohm. The 1+3 and 4 ohm resistor are parallel therefore resulting resistance is ½ ohm. Now ½ and 15 are in series. therefore R is equal to 17 ohm. By formula, V=IR, 17= I*17, I=1A.
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