A long horizontal wire carries a curren such that 12.13 x 1018 electrons per second flow through any given point from left to right. What is the magnitude of the field of the long wire at a point 20mm parallel to its north?

Q: B 3. The vertical position, y, of any point on a rope that supports a transverse wave travelling…

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Q: Three 15 Q2 resistors are connected in parallel and placed across a 30.0 V battery. a. What is the…

A: a) equivalent resistance for a parallel combination is given by…

Q: 3. . What is the magnitude of force between two negative point charges, one of 2 x 10-5 C, the other…

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Q: Blocks A, B, and C are placed as in the figure below and connected by ropes of negligible mass. Both…

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Q: 01) Choose the correct answer the 1. The force which acts along the radius of a circle and directed…

A: In a circular motion, the only force which is responsible for the motion along a circle is the…

Q: Find the momentum Mass=2 kg velocity=0.23 m/s

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Q: A standing wave of n loops is formed by a vibrator on a taut string of length L=6 m. If the…

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Q: the equation of a certain wave is 10sen[2pi(2x-100t)] where x is measured in meters and t in…

A: we have y=10sin2π2x-100t=10sin4πx-200πt

Q: Question 4 The graph in the figure shows the variation of the electric potential V(x) (in arbitrary…

A: Electric field is given as :- Ex = - (dV/dx)    = - {slope of potential (V) vs Distance (x)}   From…

Q: 9. As a coil in an AC generator rotates in a magnetic field, it reaches the position shown in the…

A: the situation can be seen as t=0 moment of the flux varying as ϕt=ϕ0cosωt

Q: A racing car has a uniform acceleration of 24 m/s². What distance will it cover in 4 seconds after…

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Q: Question 2 The molar volume of a certain solid is 142.0 cm³ mol-¹ at 1.00 atm and 427.15 K, its…

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Q: Find the displacement Work done=0.8 J Force=0.4 N

A: Given data:  Work done (W) = 0.8 J Force (F) = 0.4 N Required: The displacement (d)

Q: PROBLEM 1 Complete the ray diagram to locate the image in this situation with a diverging lens of…

A: The problem can be solved using lens formula.

Q: During an evidence collection process, which of the following can be used to block mobile phone…

A: Answer- the correct answer is (b) A Faraday bag

Q: If the 10.0 μF capacitor of a heart defibrillator is charged to 9.00×10³ V, what is the energy…

A: Given Data  Capacitance C = 10.0 μF  Voltage V = 9×103 V Energy Stored in Capacitor W to be known?

Q: A a) A clean Nickel surface is exposed to light of wavelength 235 nm. What is the maximum speed of…

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Q: The round plates of an ideal air-filled parallel-plate capacitor carry a set quantity of equal but…

A: Capacitance of a air filled plate capacitor is  C = A∈0/d( A = area of plates, d = separation…

Q: Determine force Work done=500 J Displacement=10 m

A: Workdone = Force x Displacement

Q: A nuclear power plant operates at 66 % of its maximum theoretical (Carnot) efficiency between…

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Q: a. K = π[m¯¹] O b. K = 2π[m-¹1] O c. K = 67[m=¹] O d. K = 3r[m=¹]

A: Given that                   The amplitude (A) = 15cm                   Wavelength λ = 40cm = 0.40m…

Q: All materials change in; length when placed under tension or compression. When a sample of fresh…

A: Option a is correct. All materials change in length, when placed under tension or compression. When…

Q: What will be the momentum of a stone having mass of 20 kg when it is thrown with a velocity of 8 m/s…

A: Given:mass is 20 kgVelocity is 8 m/sTo Find:Momentum

Q: The electric field lines point in the direction of

A: The electric field lines point in the direction of decreasing potential From the relationship…

Q: When two or more capacitors are connected in series to a battery,   a. the total voltage across the…

A: When capacitors are connected in series Theri equivalent capacitance  (1/Ceq) = (1/C1) +(1/C2)…

Q: 30 cm Two masses, each 100 grams, are connected by an effectively massless rubber band and thrown in…

A: Moment of inertia of the system is I=mr2+mr2=2mr2 where r is the distance of each mass from the…

Q: 1. Calculate the current through a 5 μF capacitor if the voltage across it is v(t) = 10 cos 6000t V

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A block of aluminum with a volume of 10 cm3 is placed in a beaker of water filled to the brim. Water…

A: Given:-  A block of aluminum with a volume of 10 cm3 is placed in a beaker of water filled to the…

Q: Q9. The temperature of a 1 km long copper wire has been increased by 50° C, then its length will be…

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Q: Given the circular coil shown below, calculate the magnitude of: a. Magnetic moment b. Torque on the…

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Q: potential

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Q: A circular flat surface has a radius of 3.5 ft in a uniform magnetic field. Calculate the magnetic…

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Q: Design experiments to determine how you can predict the value of the pressure in air or in water on…

A: The pressure inside liquid is only dependent on the height of liquid above the point of concern. The…

Q: particular type of wave hasa wavelength of 5m that pass by an observer once every 4 seconds. A.…

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Q: If a child were born with natural musical ability because the child's mother had taken piano…

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Q: The voltage across a 200-mH inductor is given by v(t) = 3t² + 2t + 4 V for t >0. If i(0) = 1 A.…

A: We have for inductor V=Ldidt

Q: (I) Water is in which phase when the pressure is 0.01 atm and the temperature is (a) 90°C, (b)…

A: Variation of boiling and melting point of water with atmospheric pressure:

Q: The diagram below shows a circuit with one battery and 10 resistors; 5 on the left and on the right.…

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Q: Vectors A and B are given by: A = 89.23i + 32.22j B = 57.28i + 1.98j Find the scalar product AB.

A: Given: A=89.2i+32.22jB=57.28i+1.98j

Q: Irina is told to use a meter stick to find the length of a room. She makes six independent…

A: Required  best estimate length of room from the given observed lengths 4.402 m , 4.217 m, 4.345 m ,…

Q: 2 Electrons and Baseballs According to de Broglie's hypothesis, every object- even a baseball- has a…

A: de brogile wavelength λ =h/p                    h is plank constant                     p is…

Q: Find current Voltage=22 V Resistance 4 ohms

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Q: A Trapeze artist steps off a platform and swings downward. At the bottom of her swing, she is moving…

A: Initial velocity when the trapeze artist steps off the platform (u) = 0 msvelocity at the bottom of…

Q: Q2. Consider two identical interfering waves with wavelength λ = 0.2 m travelling in the positive…

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Q: A guitar string of mass 6.48 g and -1 length L= 90 cm is under a tension of 150 N. A standing wave…

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Q: Two sinusoidal waves travel in the same direction with the same amplitude A = 1 m, same wavelength…

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Q: A 1540-kg car is traveling with a speed of 12.4 m/s. What is the magnitude of the horizontal net…

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Q: Problem no 9: Draw pendulum in two positions: at the maximum deflection at the point of equilibrium…

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Q: Find distance covered Speed=20 km/hr Time=1 hr

A: Given data : Time=t Speed=S   Required : Distance

Q: m of a horizontal line passing through a vertical lens. Along the horizontal line, from left to…

A: Given:-  The object distance is u = -10 cm  the focal leingth of the lens f = -20  cm  find:-  The…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.