The current is drawn from a cell of emf E and iternal resitance r connected to the network of

Three resistors having resistances r1, r2 and r3 are connected as shown in the given circuit. The

Three resistors having value R1,R2and R3 are connected in series to a battery suppose R1 carries a

The two lines (x-1)/3=-y ,z+1=0 and -x/2=(y+10/2 =z+2 intersect at a point whose y coordinate is 1

Two sources of equal emf are connected in series.This combination isin turn connected to an external

A city's traffic management department is planning to optimize traffic flow by analyzing the connect

In the two electric circuits shown in the figure determine the readings of the ideal ammeter(A) and

I-V graph for a metallie wire at two different tempearture T1and T2 is as shown in the figure.Which

Two aeroplanes I and II bomb a target in succession. The probabilities of I and II scoring a hit

A straight line plot showing the terminal potential difference of a cell as a function of current

Calculate the number of units of electricity used if a bulb of 100 W is kept on for 5 hours

calculate the enthalpy change on freezing 1.0 mol of water at 10.0^∘C to ice at -10.0^∘C

A bird is flying through a distance in a straight line given by the vector i+2j+k. A man standing

Projection of a vector | Vector Algebra | Grade 12 | Math

If 𝑓(𝑎 + 𝑏 − 𝑥) = 𝑓(𝑥), then ∫ 𝑥 𝑓(𝑥)𝑑𝑥 𝑏 𝑎 is equal to (A) 𝑎+𝑏 2 ∫ 𝑓(𝑏 − 𝑥)𝑑𝑥 𝑏 𝑎 (B) 𝑎+𝑏

Which of the following has negative temperature coefficient of resistivity

A battery is connected to the conductor of non-uniform cross-section area. The quantities or

A uniform wire of resistance 12 Ω is cut into three pieces in the ratio 1:2:3 and the three pieces

A constant voltage is applied between the two ends of a uniform metallic wire, heat 'H' is developed

An electric current is passed through a circuit containing two wires of the same material connected

If f(x + y)=f(x) f(y) for all x ,y ⋳ R and f(5)=2 ,f'(0)=3 then using the definition of derivatives

The temperature (T) dependence of resistivity of materials A and material B is represented by figure

what is the maximum area of the sports field alone

the government wants to maximise the area including parking area for this to happen value of y is

the maximum area of sports ground is for x equal to

The government of a state which has mostly hilly area decided to have adventurous playground on the

Find equivalent capacitance between A and B in the combination given below. Each capacitor is of 2µF

In the figure given below find the (a) equivalent Capacitance of the network between points A and B.

The electric potential V as a function of distance X is shown in figure.The graph of magnitude of E

a thin metallic spherical shell of radius R carries a charge Q on its surface a point charge Q/2 is

A spherical conducting shell has a charge of -14 mC on its outer surface and a charged particle in

The figure shows the field lines of a positive point charge. The work done by the field in moving a

Four electric charges +q, +q , -qand - q are placed at the corners of a square of side 2L .The

A solid spherical conductor has charge +Q and radius R. It is surrounded by a solid spherical shell

A square surface of side L meters is in the plane of the paper. A uniform electric field E (volt/m)

Beams of electrons and protons move parallel to each other in the same direction. They

In an experiment three microscopic latex spheres are sprayed into chamber charges + 3e, + 5e and -3e

A negatively charged object X is repelled by another charged object Y . However, an object Z is

A square sheet of side 'a' is lying parallel to XY plane at z = a electric field in region is E=cz2k

four objects W,X,Y and Z each with charge +q are held fixed at four points of a square of side d as

A rectangular loop (1 cm x 5 cm) of wire carrying current of 0.4 A is placed in a magnetic field B

give an example of fission reaction calculate the energy released by the fission of 1kg of Uranium

Which of the following will give iodoform test

Iodoform Test

A point charge of 10 nC is fixed at the origin of x-y plane. A second point charge of - 20 nC is

An unstable nucleus has mass number A = 240 and BE/A = 7.6 MeV it splits into two fragments each of

Depict the variation of electric and magnetic fields in an electromagnetic wave as it propagates

Light of wavelength 640 nm incident on the slits in a Young’s double-slit experiment produces an

A point charge q is kept at a distance of d/2 directly above the centre of a square of side d use

The figure shows a network of resistors connected across a battery. Find the current supplied by the

A convex lens is kept coaxially on the left side of a concave mirror at a distance of 5f from it

ABC is an equilateral triangle of side l. Two point charges +2 μC each are located at points B and C

A plano-convex lens of refractive index µ₁ is placed coaxially in contact with a biconcave lens of

a rectangular loop of area vector A = i+√3 j x10^-2 m2 is placed in magnetic field B =4.0t^2 +2.0 j

Find the Q value of the following nuclear reaction

State Kirchhoff's laws. Apply these laws to find the values of current flowing in the three branches

A concave mirror has radius of curvature 20 cm. Calculate the distance of an object from the mirror

A copper wire of uniform cross sectional area carries a current of 3.4 A . The drift velocity of

An alpha particle and a deuterium ion are accelerated through the same potential difference. These

A tank is filled with a liquid of refractive index root 2 up to a height of 30 cm. A tiny bulb is