The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be

Solution

We know
$straight e space equals space minus space straight L di over dt During space 0 space to space straight T over 4 comma space di over dt space equals space constant So comma straight e space equals negative ve For space straight T over 4 space to space straight T over 2 comma space di over dt space equals space 0 For space straight T over 2 space to space fraction numerator 3 straight T over denominator 4 end fraction comma space di over dt equals 0 straight e equals 0 For space straight T over 2 space to space fraction numerator 3 straight T over denominator 4 end fraction comma space di over dt space equals space constant straight e equals plus ve$

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

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Electric Charges And Fields

The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

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NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Electric Charges And Fields

The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?b) Explain why two field lines never cross each other at any point?

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?