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Two charges ±10 µC are placed 5.0 mm apart. Determine the electric field at a point P on the axis of the dipole 15 cm away from its centre O on the side of the positive charge, as shown in Fig. ,

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Consider a region inside which there are various types of charges but the total charge is zero. At points outside the

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(1) The electric field `vecE` due to a point change at any point near to it is defined as: `vecE=Lim vecF/q`where q is the test charge and `vecF` is the force acting on it. What is the significance of lim `qtoo` in this expression?(2) Two charges each `2 xx 10^(-7)` C but opposite in sign forms a system. These charges are located at points A (0,0, -10) cm and B(0,0, +10) cm respectively. What is the total charge and electric dipole moment of the

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Quantisation of charge implies : (a) charge cannot be destroyed (b) charge exists on particles (c) there is a minimum permissible charge on a particle (d) charge, which is a fraction of a charge on an electron is not possible

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A point charge of 2.0 µC is at the centre of a cubic Gaussian surface 9.0 cm on edge. What is the net electric flux through the

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A cylindrical space of radius R is filled with a uniform magnetic induction B parallel to the axis of the cylinder. If `(dB)/(dt) =` constant, the graph, showing the variation of induced electric field with distance r from the axis of cylinder, isConsider a conducting circular loop placed in a magnetic field as shown in figure. When magnetic field changes with time, magnetic flux also changes and emf `e=-(dphi)/(dt)` is induced. If resistance of loop is R then induced current is `i=e/R`. For current, charges must have non–zero average velocity. Magnetic force cannot make the stationary charges to move. Actually

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NCERT Chapter14 Oscillations SHM Intro

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The instantancous voltage through a device of impedance `20Omega` is `ε= 80 sin100π t ` . The effective value of the current

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What will be the total flux through the faces of the cube (Fig. ) with side of length a if a charge q is placed at (I) C: centre of a face of the cube.(II) D: mid-point of B and

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Two identical circular loops of metal wire are lying on a table near to each other without touching.Loop A carries a current which increasing with time.In response the loop

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Electric Charges The physical property of matter that causes it to experience a force when placed in an electromagnetic field is called electric charge. Electric charge is a characteristic that accompanies fundamental particles, wherever they exist. The process of charging a neutral body by bringing a charged body nearby it without making contact between the two bodies is known as charging by induction.Figures given below are showing the sequential steps of charging a conductor permanently by using the process of charging by induction.We have two bodies with charge `q_1 and q_2` on them, then `q_1 + q_2 = 0`,

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Consider a closed loop C in a magnetic field (Fig ). The flux passing through the loop is defined by choosing a surface whose edge coincides with the loop and using the formula φ = B1.dA1 + B2.dA2 + ... . Now if we chose two different surfaces S1 and S2 having C as their edge, would we get the same answer for flux. Jusity your

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A parallel plate capacitor has circular plates of radius 8 cm and plate separation 1 mm. The charge on the plates, if potential difference of `100 V` applied

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A square current carrying loop abed is placed near an infinitely long another current carrying wire ef. Now, match the following two columns. Column I Column II A. Net force on `bc and da` p. zero B. Net force on `ab and cd` q. non-zero C. Net force on complete loop `abcd` r. rightwards D. Net force on ab s. constant

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An uncharged conductor of inner radius `R_1` and outer radius `R_2` contains a point charge q placed at point P (not at the centre) as shown in figure? Find out the following :(i) `V_C` (ii) `V_A` (iii) `V_B` (iv) `E_A` (v) `E_B` (vi) force on charge Q if it is placed at

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What is SI unit of charge?

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An inductor-resistor-battery circuit is switched on at t = 0. If the emf of battry is `epsilon` find the charge passes through the battery in one time constant

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Fig. shows a long straight wire of a circular cross-section (radius a) carrying steady current I. The current I is uniformly distributed across this cross-section. Calculate the magnetic field in the region r < a and r >

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An electric dipole is placed in a uniform electric field. The dipole will

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The output of a step-down transformer is measured to be 24 V when connected to a 12 watt light bulb. The value of the peak current

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