JEE Main 2021 (Online) 27th August Evening Shift | Capacitor Question 36 | Physics

JEE Main 2021 (Online) 27th August Evening Shift

MCQ (Single Correct Answer)

-1

Three capacitors C₁ = 2$$\mu$$F, C₂ = 6$$\mu$$F and C₃ = 12$$\mu$$F are connected as shown in figure. Find the ratio of the charges on capacitors C₁, C₂ and C₃ respectively :

JEE Main 2021 (Online) 27th August Evening Shift Physics - Capacitor Question 36 English

JEE Main 2021 (Online) 27th August Evening Shift Physics - Capacitor Question 36 English

2 : 1 : 1

2 : 3 : 3

1 : 2 : 2

3 : 4 : 4

JEE Main 2021 (Online) 27th August Morning Shift

MCQ (Single Correct Answer)

-1

Calculate the amount of charge on capacitor of 4$$\mu$$F. The internal resistance of battery is 1$$\Omega$$ :

JEE Main 2021 (Online) 27th August Morning Shift Physics - Capacitor Question 37 English

JEE Main 2021 (Online) 27th August Morning Shift Physics - Capacitor Question 37 English

8 $$\mu$$C

zero

16 $$\mu$$C

4 $$\mu$$C

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)

-1

A parallel plate capacitor with plate area A has separation d between the plates. Two dielectric slabs of dielectric constant K₁ and K₂ of same area A/2 and thickness d/2 are inserted in the space between the plates. The capacitance of the capacitor will be given by:

JEE Main 2021 (Online) 26th August Evening Shift Physics - Capacitor Question 38 English

JEE Main 2021 (Online) 26th August Evening Shift Physics - Capacitor Question 38 English

$${{{\varepsilon _0}A} \over d}\left( {{1 \over 2} + {{{K_1}{K_2}} \over {{K_1} + {K_2}}}} \right)$$

$${{{\varepsilon _0}A} \over d}\left( {{1 \over 2} + {{{K_1}{K_2}} \over {2({K_1} + {K_2})}}} \right)$$

$${{{\varepsilon _0}A} \over d}\left( {{1 \over 2} + {{{K_1} + {K_2}} \over {{K_1}{K_2}}}} \right)$$

$${{{\varepsilon _0}A} \over d}\left( {{1 \over 2} + {{2({K_1} + {K_2})} \over {{K_1}{K_2}}}} \right)$$

JEE Main 2021 (Online) 26th August Morning Shift

MCQ (Single Correct Answer)

-1

The material filled between the plates of a parallel plate capacitor has resistivity 200 $$\Omega$$m. The value of capacitance of the capacitor is 2 pF. If a potential difference of 40 V is applied across the plates of the capacitor, then the value of leakage current flowing out of the capacitor is : (given the value of relative permittivity of material is 50)

9.0 $$\mu$$A

9.0 mA

0.9 mA

0.9 $$\mu$$A

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