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Figure 32-27 shows a closed surface. For a non-uniform electric field, we use equation 32-3 for finding the magnetic field inside the circle and outside the circle. A) Perpendicular to magnetic field lines, in a direction defined by the right-hand rule. The force is: Laws of Motion. What are the resistance of armature and induced e. m. f.? Assertion: When a piece of non-metal and a metal are dropped from the same height near the surface of the earth, the non-metallic piece will reach the ground first. Defined & explained in the simplest way possible. If is the subsequent change in volume of contained air and the change in total surface area, is the surface tension and atmospheric pressure, which of the following relation is correct? The figure below shows a circular fishpond of radius 6 meters surrounded by a pavement of uniform width. The figure shows a circular region of radis rose. Two soap bubbles coalesce to form a single bubble. Cannot be predicted. Assertion: Iron loss is minimized by using a laminated core. The space between the plates of a parallel plate capacitor is filled with a 'dielectric' whose 'dielectric constant' varies with distance as per the relation: The capacitance, of this capacitor, would be related to its 'vacuum' capacitance as per the relation: Electrostatic Potential and Capacitance. The Question and answers have been prepared.
The magnetic flux linked with a coil varies with time as, where is in weber and t is in seconds. At what depth is the bubble below the surface of the liquid? Ans we need to find electric field inside the circular region as r < R. So, from the relation we know that, Here, - V Denotes Voltage/EMF. The flux encircled by a concentric circle of radius r is given by, where and t is in seconds. The potential across a generator is 125V when it is delivering 10A. The formula is as follows: Where, is the magnetic field, is the flux. Figure shows a circular region of radius R in which uniform magnetic field B exists. In English & in Hindi are available as part of our courses for JEE. Developer's Best Practices. How much is the current in the circuit in steady state? Get premium membership. The figure shows a circular region of radius 12. The circuit shown here has two batteries of and and three resistors and and a capacitor. From the given, localid="1663150045833".
Besides giving the explanation of. Effective Resume Writing. Each plate has a radius of. Reason: It is on account of self-inductance that the coil opposes any change in current passing through it. We need your help to maintenance this website. 70 mWb is directed outward. In that case, which of the following graphs, drawn schematically, correctly shows the variation of the induced electric field E(r)? The JEE exam syllabus. The figure shows a circular region of radius 2. National Mock Tests. Ds denotes small elemental length/distance. The pressure inside the bubble is 1100 greater than the atmospheric pressure. Ample number of questions to practice Figure shows a circular area of radius R where a uniform magnetic fieldis going into the plane of paper and increasing in magnitude at a constant rate. Hence, we got the value of electric field. Figure shows a circular area of radius R where a uniform magnetic fiel... Opt d. Question Description.
Assertion is a true statement but the reason is false. By using the concept of magnetic field for the non-uniform electric field, the magnetic field inside and outside the circle can be found. Updated on 16-Mar-2023 12:33:34.
If the magnetic flux linked with the primary coil is given by where is in weber, is time in second and is a constant, then the output voltage across the secondary coil is: Questions from JEE Main 2014. Solution: Questions from Electromagnetic Induction. We are a non-profit group that run this website to share documents. The figure shows a circular fishpond of radius 6 meters surrounded by a pavement of uniform width. - Tutorke. Proper planning to complete syllabus is the key to get a decent rank in JEE. Covers all topics & solutions for JEE 2023 Exam. Test Series/Daily assignments. A body of mass under the action of constant force has velocity at as m/s and at as m/s.
The width of the pavement is x meters as shown. From the formula, for magnetic field inside the circle, i. e., as. An air bubble of radius is in a liquid having surface tension and density. Assertion: Self-inductance is called the inertia of electricity. Reason: Lamination of core restricts eddy current. What are the (a) magnitude and (b) direction (inward or outward) of the magnetic flux through the curved part of the surface? Answer: Explanation: As given the Magnetic field is increasing at a rate of dB/dt, therefore the magnetic field is not constant. To keep our site running, we need your help to cover our server cost (about $400/m), a small donation will help us a lot. 4. for rR and for rR. Practice over 30000+ questions starting from basic level to JEE advance level. The magnetic field due to a bar magnet is non-uniform. Live Doubt Clearing Session. Both assertion and reason are false statements.
The magnetic field is increasing at a rate d B d t. The induced electric field at a distance r from the centre for r < R is. So please help us by uploading 1 new document or like us to download: OR LIKE TO DOWNLOAD IMMEDIATELY. During the discharging, at a point between the plates at radial distance from the central axis, the magnetic field has a magnitude of. If the instantaneous charge in the capacitor is 400C and current through the circuit is decreasing at the rate 103 A/s, then potential difference VA-VB is equal to. Questions and Answers. The induced electric field at a distance r from the centre is.