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CBSE Class 12-science Answered

ans this plz
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Asked by ac9968252687 | 11 Jun, 2020, 07:46: PM
answered-by-expert Expert Answer
two cells having emf 4V and 2V and internal resistance 1ohm and 1 ohm are connected. We have to calculate the current through 6 ohm.
 
The combined resistance of 3 ohm and 6 ohm is
 
R subscript e f f end subscript equals fraction numerator 3 cross times 6 over denominator 3 plus 6 end fraction R subscript e f f end subscript equals 2 o h m T o t a l space r e s i s tan c e space o f space t h e space c i r c u i t 2 plus 2 plus 1 plus 1 equals 6 o h m V subscript t o t a l end subscript equals 4 plus 2 equals 6 V i equals 6 over 6 equals 1 A N o w space 3 o h m space a n d space 6 space o h m space a r e space c o n n e c t e d space i n space p a r a l l e l t h e r e f o r e space c u r r e n t space t h r o u g h space 6 space o h m space i s space g i v e n space b y space i subscript 6 equals fraction numerator 3 cross times 1 over denominator 3 plus 6 end fraction equals 1 third A
Answered by Utkarsh Lokhande | 13 Jun, 2020, 06:09: AM

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CBSE 12-science - Physics
Electric sheilding 
Asked by divakar.9124 | 27 Apr, 2024, 10:42: PM
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CBSE 12-science - Physics
explain this concept
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Asked by panneer1766 | 24 Apr, 2024, 01:52: PM
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CBSE 12-science - Physics
A dumbbell consists of two masses A and B each of mass m joined by a light rod of length l with mass B attached to a suspension point O by a light rod of length l as shown in figure. Find the minimum required speed with which mass A to be projected horizontally so that the system completes the vertical circular motion.
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Asked by artabandhusahu85 | 24 Apr, 2024, 12:07: PM
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CBSE 12-science - Physics
What is charge?
Asked by niharvijayvargiya5 | 23 Apr, 2024, 06:40: PM
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CBSE 12-science - Physics
please resolve with good explanation
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Asked by kulhariabhijeet | 21 Apr, 2024, 02:39: PM
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CBSE 12-science - Physics
what are ghost particles please answer how is that not able to interact with other subatomic particles ..?is that faster than photons?
Asked by mohapatraswetalina88 | 21 Apr, 2024, 12:18: PM
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CBSE 12-science - Physics
if breakdown voltage of each capacitor is 40v ,then maximum applied voltage Vmax will be
Asked by aishaisha091098 | 19 Apr, 2024, 04:54: PM
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CBSE 12-science - Physics
explain
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Asked by ranadeb8090 | 19 Apr, 2024, 03:32: PM
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CBSE 12-science - Physics
solve option e
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Asked by dasrituparna1999 | 13 Apr, 2024, 06:56: AM
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CBSE 12-science - Physics
The number of moles in an elemental sample is just the ratio of the mass m to atomic mass 4. n= A The number of protons N, in an elemental sample is Z (atomic number) times the number of moles of Avogadro's number NA N=ZnN P A Copper has an atomic mass of 63.5 g/mole and 29 protons per atom. If such an atom were neutral, then it would have as many protons as electrons. If you remove electrons from a neutral state, then you get a net positive charge. Given a 54 gram ball of copper with a net charge of 2.2 µC, what fraction of the copper's electrons have been removed?
Asked by dasrituparna1999 | 12 Apr, 2024, 09:26: PM
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