then
Two bulbs X and Y having same voltage rating and of power 40 watt and 60 watt respectively are connected in series across a potential difference of 300 volt, then
21
Sep
Two bulbs X and Y having same voltage rating and of power 40 watt and 60 watt respectively are connected in series across a potential difference of 300 volt, then then Two bulbs X and Y having same voltage rating and of power 40 watt and 60 watt respectively are connected in series across a [...]
A room AC run for 5 hour at a voltage of 220 V The wiring of the room constant of Cu of 1 mm ratio and a length of 10 m consumption per day is 10 commerclal unit What fraction of it goes in the joule heated in wire? What would happen if the wiring is made of aluminum of the same distances? [ρcu = 1.7 × 10^−8Ω, ρA1 = 2.7 × 10^−8 Ω m]
21
Sep
A room AC run for 5 hour at a voltage of 220 V The wiring of the room constant of Cu of 1 mm ratio and a length of 10 m consumption per day is 10 commerclal unit What fraction of it goes in the joule heated in wire? What would happen if the wiring [...]
Two bulbs consume same energy when operated at 200 V and 300 V , respectively . When these bulbs are connected in series across a dc source of 500 V, then
20
Sep
Two bulbs consume same energy when operated at 200 V and 300 V , respectively . When these bulbs are connected in series across a dc source of 500 V, then respectively . When these bulbs are connected in series across a dc source of 500 V then Two bulbs consume same energy when operated [...]
If orbital velocity of planet is given by v = Ga Mb Rc, then
19
Sep
If orbital velocity of planet is given by v = Ga Mb Rc, then If orbital velocity of planet is given by v = Ga Mb Rc then September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 ,
B1, B2, and B3 are three balloons ascending with velocities v, 2v, and 3v, respectively. If a bomb is dropped from each when they are at the same height , then
19
Sep
B1, B2, and B3 are three balloons ascending with velocities v, 2v, and 3v, respectively. If a bomb is dropped from each when they are at the same height , then 2v and 3v and B3 are three balloons ascending with velocities v B1 B2 respectively. If a bomb is dropped from each when they [...]
The resistance R1 of a conductor varies with temperature t as shown in the figure. If the variation is represented by R1 = R0 [ 1+ alpha t + bita t^2 ], then
19
Sep
The resistance R1 of a conductor varies with temperature t as shown in the figure. If the variation is represented by R1 = R0 [ 1+ alpha t + bita t^2 ], then The resistance R1 of a conductor varies with temperature t as shown in the figure. If the variation is represented by R1 [...]
A tank full of water has a small hole at its bottom. Let t1 be the time taken to empty the first half of the tank and t2 be the time needed to empty the rest half of the tank, then
18
Sep
A tank full of water has a small hole at its bottom. Let t1 be the time taken to empty the first half of the tank and t2 be the time needed to empty the rest half of the tank, then A tank full of water has a small hole at its bottom. Let t1 [...]
Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed and the two capacitors get charged fully, then
18
Sep
Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed and the two capacitors get charged fully, then then Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed [...]
Four similar charges each of charge +q are placed at four corners of a square of side a. Find the value of integral −∫a/2√∞E→.d→r. (in volts) if value of integral −∫0 a/2√E→.dr→ = root 2Kq /a( where K= 1/ 4 π ε0 )
18
Sep
Four similar charges each of charge +q are placed at four corners of a square of side a. Find the value of integral −∫a/2√∞E→.d→r. (in volts) if value of integral −∫0 a/2√E→.dr→ = root 2Kq /a( where K= 1/ 4 π ε0 ) B C and D are marked which are equidistant from the origin. [...]
If A is perpendicular to B, then
17
Sep
If A is perpendicular to B, then If A is perpendicular to B then September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,