NEET 2020 Phase 1 | Current Electricity Question 32 | Physics

A charged particle having drift velocity 7.5$$ \times $$10^-4 ms^-1 in an electric field of 3$$ \times $$10^-10 Vm^-1 has a mobility in m² V^-1s^-1 of :

2.5 $$ \times $$10⁶

2.5 $$ \times $$10^-6

2.25 $$ \times $$10^-15

2.25 $$ \times $$10¹⁵

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

Which of the following graph represents the variation of resistivity ($$\rho $$) with temperature (T) for copper?

NEET 2020 Phase 1 Physics - Current Electricity Question 30 English Option 1

NEET 2020 Phase 1 Physics - Current Electricity Question 30 English Option 2

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

The solids which have the negative temperature coefficient of resistance are :

insulators only

semiconductors only

insulators and semiconductors

metals

NEET 2019

MCQ (Single Correct Answer)

-1

In the circuits shown below, the readings of voltmeters and the ammeters will be : NEET 2019 Physics - Current Electricity Question 40 English

V₁ = V₂ and i₁ = i₂

V₁ > V₂ and i₁ > i₂

V₁ > V₂ and i₁ = i₂

V₁ = V₂ and i₁ > i₂

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