Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
In the above question, what will be the effect on the brightness of bulb if frequency of the source omega is increased ?
27
Oct
In the above question, what will be the effect on the brightness of bulb if frequency of the source omega is increased ? In the above question what will be the effect on the brightness of bulb if frequency of the source omega is increased ? October 27, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Two inductors L1( inductors 1 mH, internal resistance 3 Ω ) and L 2 (inductance 2 mH, internal resistance 4 Ω ),and a resistor R(resistance12ω) are all connected in parallelacross a 5 V battery. The circuit is switched on at time t=0. The ratio of the maximum to the minimum current ( I max/I min ) drawn from the battery is
27
Oct
Two inductors L1( inductors 1 mH, internal resistance 3 Ω ) and L 2 (inductance 2 mH, internal resistance 4 Ω ),and a resistor R(resistance12ω) are all connected in parallelacross a 5 V battery. The circuit is switched on at time t=0. The ratio of the maximum to the minimum current ( I max/I min [...]
A circular wire loop of radius R is placed in the x-y plane centered at the origin O. A square loop of side a(altltR) having two turns is placed with its centre at = root 3 R along the axis of hte circular wire loop, as shown in figure. The plane of the square loop makes an angle of 45∘ with respect to the z-axis. If the mutual inductance between the loops is given bu μ0a^2/ 2p/2 R, then the value of p is
27
Oct
A circular wire loop of radius R is placed in the x-y plane centered at the origin O. A square loop of side a(altltR) having two turns is placed with its centre at = root 3 R along the axis of hte circular wire loop, as shown in figure. The plane of the square loop [...]
A soft iron rod is inserted in the solenoid . After this what will be the effect on the brightness of the bulb ?
27
Oct
A soft iron rod is inserted in the solenoid . After this what will be the effect on the brightness of the bulb ? A soft iron rod is inserted in the solenoid . After this what will be the effect on the brightness of the bulb ? October 27, 2020 Category: Uncategorised (JEE Advanced [...]
Can we use 15 Hz ac for lighting purposes ?
27
Oct
Can we use 15 Hz ac for lighting purposes ? Can we use 15 Hz ac for lighting purposes ? October 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A long circular tube of length 10 m and radius 0.3 m carries a current I along its curved surface as shown . A wire – loop of resistance 0.005 ohm and of radius 0.1 m is placed inside the tube its axis coinciding with the axis of the tube . The current varies as I = I0 cos ( 300 t ) where I0 is constant. If the magnetic moment of the loop is Nμ 0I0 sin( 300 t ), then ‘N’ is
27
Oct
A long circular tube of length 10 m and radius 0.3 m carries a current I along its curved surface as shown . A wire – loop of resistance 0.005 ohm and of radius 0.1 m is placed inside the tube its axis coinciding with the axis of the tube . The current varies as [...]
A liquid in a beaker has temperature theta (t) at time t and theta 0 is temperature of surroundings, then according to Newton’s law of cooling the correct graph between
25
Oct
A liquid in a beaker has temperature theta (t) at time t and theta 0 is temperature of surroundings, then according to Newton’s law of cooling the correct graph between A liquid in a beaker has temperature theta (t) at time t and theta 0 is temperature of surroundings then according to Newton's law of [...]
A long metallic bar is carrying heat from one of its ends to the other end under steady state. The variation of temperature theta along the length x of the bar from its hot end
25
Oct
A long metallic bar is carrying heat from one of its ends to the other end under steady state. The variation of temperature theta along the length x of the bar from its hot end A long metallic bar is carrying heat from one of its ends to the other end under steady state. The [...]
A cylindrical rod of length 50 cm and cross-sectional area 1 cm^2 is fitted between a large ice chamber at 0 C and an evacuated chamber maintained at 27 C as shown in figure.
25
Oct
A cylindrical rod of length 50 cm and cross-sectional area 1 cm^2 is fitted between a large ice chamber at 0 C and an evacuated chamber maintained at 27 C as shown in figure. A cylindrical rod of length 50 cm and cross-sectional area 1 cm^2 is fitted between a large ice chamber at 0 [...]
Let us assume that sun radiates like a black body with surface temperature at T0 = 6000 K and earth absorbs radiations coming from sun only. If both earth and sun are considered
25
Oct
Let us assume that sun radiates like a black body with surface temperature at T0 = 6000 K and earth absorbs radiations coming from sun only. If both earth and sun are considered Let us assume that sun radiates like a black body with surface temperature at T0 = 6000 K and earth absorbs radiations [...]