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CBSE Class 12-science Answered

solve it
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Asked by rohitraman1115 | 02 Jul, 2018, 09:43: PM
answered-by-expert Expert Answer
torque = begin mathsize 12px style bold p with bold rightwards arrow on top bold cross times bold E with bold rightwards arrow on top space equals space p cross times E cross times sin theta space equals space q cross times d cross times E cross times sin theta space equals space q cross times 2 cross times 10 to the power of negative 2 end exponent cross times 10 to the power of 5 cross times 1 half space equals space 10 square root of 3 space................ left parenthesis 1 right parenthesis end style
In eqn.(1), q is charge in Coluomb, d is distance between charges in dipole, E is electric field and θ is angle between field direction and dipole.
 
from eqn.(1), we get,   q = √3 × 10-2 C
 
potential energy = begin mathsize 12px style negative bold space bold italic p bold times bold italic E space equals space p cross times E cross times cos theta space equals negative space q cross times d cross times E cross times cos theta space equals negative space square root of 3 space cross times 10 to the power of negative 2 end exponent cross times 2 cross times 10 to the power of negative 2 end exponent cross times 10 to the power of 5 cross times fraction numerator square root of 3 over denominator 2 end fraction space equals negative 30 space J end style
Answered by Thiyagarajan K | 03 Jul, 2018, 10:09: AM

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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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CBSE 12-science - Physics
which answer is correct and most appropriate with explanation
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Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM
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