Two charged spherical conductors of radii r1 and r2

Asked by admin @ 20/08/2021 in Physics viewed by 262 People

two charged spherical conductor of radius R1 and R2 when connected by a conducting wire acquire charges Q1 and Q2 find the ratio of their charge density in terms of radius

Answered by admin @ 20/08/2021

The potenital will become , as they are connected with wire.So, V1=V2
q1/4πε₀R1=q2/4πε₀R2
q1/q2=R1/R2-----(1)
surafce charge densities are
σ₁/σ₂ =(q1/4πR1²)/(q2/4πR2²)
⇒(q1/q2 )x(R2²/R1²)
⇒(R1/R2)x(R2²/R1²)
⇒R2/R1
σ₁/σ₂=R2/R1

Two spherical black bodies of radii r1 and r2

Asked by admin @ 16/08/2021 in Physics viewed by 340 persons

Two spherical black bodies of radii r1 and r2. Their surface temperature are t1 and t2 they radiate same power then r2/r1 is

Two spherical soap bubbles of radii r1 and r2

Asked by admin @ 13/08/2021 in Physics viewed by 277 persons

Two spherical soap bubbles of radii r1 and r2 coalesce together to form a single spherical bubble of radius r. If the atmospheric pressure is P and S.T. is T, …

Two soap bubbles of radii r1 and r2

Asked by admin @ 26/08/2021 in Physics viewed by 340 persons

two soap bubbles with radii r1 and r2 (r1>r2) come in contact. their common surface has a radius of curvature r=

If a charged spherical conductor of radius 10cm

Asked by admin @ 26/08/2021 in Physics viewed by 319 persons

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm …

Two resistors r1 and r2 are connected in parallel

Asked by admin @ 17/08/2021 in Science viewed by 319 persons

when two resistors of resistance R1 and R2 they are connected in parallel the net resistance is 3 ohm when they are connected in series the value 16 ohm calculate …

Two resistors of resistances r1 100 3 ohm and r2

Asked by admin @ 04/08/2021 in Physics viewed by 340 persons

Two resistors of resistances R 1 = 100+/- 3 ohm and R2= 200 +/- 4 ohm are connected (a) in series, (b) in parallel. Find the equivalent resistance of the …

Two concentric circles of radii 5cm and 3cm

Asked by admin @ 31/08/2021 in Math viewed by 303 persons

two concentric circles are of radii 5cm and 3cm. length of the chord of the larger circle, (in cm), which touches the smaller circle is.?

Two particles having position vectors r1 3i 5j

Asked by admin @ 29/08/2021 in Physics viewed by 326 persons

Two particles having position vectors r1=(3i+5j)m r2= (-5j+3j)m are moving with velocities v1 = (4i-4j )m/s and v2=(-ai+3j)m/s .if they collide after 2 seconds ,the value of 'a' is

Two concentric circles of radii a and b

Asked by admin @ 25/08/2021 in Math viewed by 338 persons

Two concentric circles of radii a and b (a > b.are given. find the length of the chord of the larger circle which touches the smaller circle.

The radii of two planets are r and 2r

Asked by admin @ 20/08/2021 in Physics viewed by 282 persons

The radii of two planets are R and 2R respectively and their densities P and P/2 respectively. What is the ratio of acceleration due to gravity at their surfaces ?

The net charge on a current carrying conductor is

Asked by admin @ 17/08/2021 in Physics viewed by 282 persons

How the net charge in a current-carrying conductor is always zero?

Two circles of radii 10 cm and 8 cm

Asked by admin @ 17/08/2021 in Math viewed by 329 persons

two circles of a radii 10cm and 8cm intersect and the length of the common chord is 12cm. find the distance between the centers

In a current carrying conductor the net charge is

Asked by admin @ 17/08/2021 in Physics viewed by 281 persons

3. The net charge on a current carrying conductor is .......... .

Two circular pieces of equal radii and maximum area

Asked by admin @ 13/08/2021 in Math viewed by 267 persons

Q.9. Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm × 7 cm. Find the …