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This is a short answer type question as classified in NCERT Exemplar

The back emf in solenoid force in solenoid is U a maximum rate of change of current . so maximum back emf will be obtained between 5s

Since the back emf at t = 3s also the rate of change of current at t= 3s, s= slope of OA from t=0s to t= 5s=1/5 A/sec

So we have if u= L1/5 (for t= 3s, dI/dt=1/5) (L is a constant). Applying e=-LdI/dt

For 5s

At t= 7s, u₁=-3e

For 10s

For t>30s, u₂=0

Thus back emf at t=7s,15s and 40s are -3e, e/2 and 0 respectively.

This is a short answer type question as classified in NCERT Exemplar

The motional emf along PQ = length PQ × field along PQ

= length PQ ×  vBsin $\mathrm{\theta }$

= $\frac{d}{\mathrm{s}\mathrm{i}\mathrm{n}\mathrm{\theta }\mathrm{}}\times$ vB sin $\mathrm{\theta }$ = vBd

So emf make the flow of current in the circuit with resistance R

I= dvB/R

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- $\tau =MBsin\theta$

$\tau =pEsin\theta$

From these two we can say that

$MBsin\theta$ = $=pEsin\theta$

pE= MB

E=cB

pcB=MB

p=M/c

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Yes, Mahatma Gandhi University offers three-year-long BCom programmes. The UG course is available at the university and is made available through the affiliated colleges. MGU BCom admission is merit-based, hence, the selection is based on performance in the last qualifying examination. Some of the specialisations in which the UG course is available are:

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MBA course at Neelkanth Group of Institutions is a two-year postgraduate programme. It is designed for students aiming to build a strong foundation in management and leadership. The programme prepares candidates for various roles in the corporate world, with an emphasis on industry-relevant skills and practical business knowledge.

For the admission process of BSc Food Science and Nutrition, colleges usually ask for some common documents like 10 +2 marksheets, identity proof like Aadhar card or PAN Card, and sometimes entrance exam scores. Students may refer to the official site of colleges/ universities as sometimes certain colleges/ universities can ask for some other specific documents.

Useful Link: Read more about BSc Food and Nutrition

Yes, the TSTET mock test 2026 has not been released. The Department of School Education, Telangana releases the mock test link on its website. Candidates who will be appearing for the exam can download the mock test and undertake its practice now. 

Collateral loans are items of value which are secured and which are promised by the borrower to the lender in exchange for the loan amount. They have the right to sell the collateral if payments are not made on time. Government and commercial banks in India are the best sources of collateral loans.

This is a short answer type question as classified in NCERT Exemplar

The magnetic flux linked with the surface can considered as the number of magnetic field lines passing through the surface. So, let dφ = BA represents magnetic lines in an area to. By the concept of continuity of lines cannot end or start in space, therefore the number of lines passing through surface S₁ must be the same as the number of lines passing through the surface S₂.Therefore, in both the cases we gets the same answer for flux.

This is a short answer type question as classified in NCERT Exemplar

 $\varnothing =B.A=BAcos\theta$

$\varnothing =B_o\pi a^{2}coswt$

But according to faraday’s law e= B_{o $\pi a^{2}wsinwt$}

So the current will be I=B_{0 $\frac{\pi a^{2}wsinwt}{R}$}

For t= $\frac{\pi }{2w}$

I= $\frac{B_o\pi a^{2}w}{R}$ along j

Sinwt= sin(w $\frac{\pi }{2w}$ ) = sin $\frac{\pi }{2}$ =1

T= $\frac{\pi }{w}$ , I= $\frac{B\left(\pi a^2\right)w}{R}$

Sinwt=sinw $\frac{\pi }{w}$  = sin $\pi =0$

T= $\frac{3\pi }{2w}$

I= $\frac{B_o\pi a^{2}w}{R}$

So it become sin $\frac{3\pi }{2w}$ =-1

Yes, you can pursue a BSc in Food Science and Nutrition even if you had PCM as your subjects in 12th. Although some specific colleges prefer/ require PCB (Physics, Chemistry, and Biology). Many universities and colleges still accept PCM students for B.Sc Food Science & Nutrition or Food Technology courses.

CAS is issued by BPP uni when students get accepted by university for admissions. It can be considered as offer letter from university. University usually takes 2-4 weeks to process and issue CAS which depends on application submitted by student. It is advised to meet mandatory admission requirements and submit all required documents during application process to avoid delays and to ensure timely processing of application.

This is a short answer type question as classified in NCERT Exemplar

When the iron core is inserted in the current carrying solenoid, the magnetic field increase due to the magnetisation of iron core and consequently the flux increases.

According to Lenz's law, the emf produced must oppose this increase in flux, which can be done by making decrease in current. So, the current will decrease.

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Candidates must fill out the basic requirements related to academics. 

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This is a short answer type question as classified in NCERT Exemplar

When the coil is stretched so that there are gaps between successive elements of the spiral coil i.e., the wires are pulled apart which lead to the flux leak through the gaps.

According to Lenz's law, the emf produced must oppose this decrease, which can be done by an increase in current. So, the current will increase.