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CBSE Class 12 Science Free Doubts and Solutions

CBSE - XII Science - Physics

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Asked by prakriti12oct 15th August 2019, 1:01 AM
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CBSE - XII Science - Physics

an electric dipole is placed in a uniform electric field vector E with its dipole moment vector P parallel to the field . Find   1) the work done in turning the dipole till its dipole moment points in the direction opposite to vector E.

Asked by kothattil439 13th August 2019, 9:21 PM
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CBSE - XII Science - Physics

Please answer. 

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Asked by prakriti12oct 13th August 2019, 8:55 PM
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CBSE - XII Science - Physics

a blotting paper absorb ink by which process  

Asked by durga23102001 10th August 2019, 3:51 PM
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CBSE - XII Science - Physics

Breakdown voltage of the capacitor are mentioned in the diagram. The breakdown voltage of the system of three capacitors will be equal to   

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Asked by prakriti12oct 10th August 2019, 1:56 AM
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CBSE - XII Science - Physics

A proton and a deuteron having the same kinetic energies enter region of uniform magnetic field perpendicularly. Deuteron's mass is twice that of proton. Calculate the ratio of the radii of their circular paths.

Asked by Jamil.4579 9th August 2019, 1:13 PM
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CBSE - XII Science - Physics

In the balanced wheat stone bridge current between a and b will be zero if  A) x/y = c1/c2  B) x/y = c2/c1

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Asked by prakriti12oct 9th August 2019, 12:16 AM
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CBSE - XII Science - Physics

The charge on the capacitor at steady state is?   

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Asked by prakriti12oct 8th August 2019, 10:34 PM
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CBSE - XII Science - Chemistry - Solutions

2g of a substance dissolved in 40g of water produced a depression of 274.5K in the freezing point of water. Calculate the molecular mass of the substance .The molal depression constant for water is 274.85K per molal

Asked by mukundsharma70 5th August 2019, 10:50 PM
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CBSE - XII Science - Physics

Find the equivalent capacitance for a,b,c,d  without star Delta conversion. 

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Asked by prakriti12oct 1st August 2019, 12:27 AM
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