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Let Z be the set of all integers and R be the relation on Z defined as R={(a,b):a,b∈Z,and (a-b)is divisible by 5}. Prove that R is an equivalence relation.

Class XII, Mathematics, Relations & Functions / By D.K. Singh / 25/05/2019

Working of an Electric Motor

Class X, Physics / By D.K. Singh / 12/12/2018

An electrical motor consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q …

Working of an Electric Motor Read More »

CBSE gives relief to the 10 class students

News / By D.K. Singh / 13/10/2018

CBSE has changed the passing criteria giving relief to the 10th class students. Now they need to get only 33 per cent marks in theory and practical combined to get through the Board exam.

Institute will remain closed on 2nd October.

News, Notice / By PREM KUMAR / 30/09/2018

Notice : !! Summer Break !!

Notice / By D.K. Singh / 23/06/2018

Institute will remain close from 25 June to 30 June. Classes will resume from 2nd July (Monday) on scheduled time. Thanks

Summer Break notice :

Notice / By D.K. Singh / 23/06/2018

Institute will remain close from 25 June to 30 June. Classes will resume from 2nd July (Monday) on scheduled time. Thanks

Thought of the day

Blog, News / By D.K. Singh / 15/06/2018

Mathematics is a backbone of our education. Without backbone any organism can move but not run or fly. D. K. Singh

16 June declared as holiday

Notice / By D.K. Singh / 15/06/2018

Saturday 16 june is holiday. Institute will be remain closed on Eid. Eid Mubarak.

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Student Comments

    Deep Updates

    Let Z be the set of all integers and R be the relation on Z defined as R={(a,b):a,b∈Z,and (a-b)is divisible by 5}. Prove that R is an equivalence relation.

    Working of an Electric Motor

    An electrical motor consists of a rectangular coil ABCD of …

    CBSE gives relief to the 10 class students

    CBSE has changed the passing criteria giving relief to the …

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