In Kirchhoff’s rules, what does it mean if a negative value is obtained for a current after solving the equations? Group of answer choices The power dissipated by the resistor is negative. The resistors behave like an emf. The resistance is negative. The actual current is opposite the assumed direction.

Q: 2. What is meant by EMF? Electromotive force or emf is a measurement of the energy that causes…

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Q: Find the pressure Force=0.004 N Area=0.02 m2

A: Given: The applied force is 0.004 N. The area is 0.02 m2.

Q: The magnitude of a magnetic field is determined by the magnitude of the turning action on a small…

A: The given statement is False. Reason:- Because with the help of small test compass we can only…

Q: An object of mass 2.5 kg sliding on a horizontal frictionless surface with a speed of 4m/s collides…

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Q: . A laser gives off a monochromatic ultraviolet light with a wavelength of 344 nm. What is the…

A: Given data :- wavelength λ = 344 nm

Q: A box of mass m = 2 kg is kicked on a rough horizontal plane with an initial velocity v_O. If the…

A: Work energy theorem  It states that work done is equal to the change in kinetic energy.  W= ∆K.E

Q: nd the Horizon

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Q: 3.Starting from the rest and height of 8 m, a 3 kg object slides down a 30° m incline, reaching the…

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Q: An object of mass 2.5 kg sliding on a horizontal frictionless surface with a speed of 4m/s collides…

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Q: In four hours a light plane having air speed 200 kph flies for 480 km against the wind and halfway…

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Q: QUESTION 8 25" A y K - 35"- F = 200 lb Determine: Moment about point A (in lb-ft) round off to the…

A: Torque = r × F = rFsinθ r= position vector F= force vector θ is the angle between r and F

Q: A ball moves on a frictionless track as shown below. The horizontal plane passing through the…

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Q: For a mass-spring system that undergoes a simple harmonic motion with amplitude A, determine the…

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Q: Hans Full is pulling on a rope to drag his backpack to school across the ice. He pulls upwards and…

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Q: Find the impulse Force=0.621 N Time=0.23 s

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Q: Determine Distance covered by train in 1 hr Speed of train=80 km/hr

A: Given data : Speed=S Time=t   To find : Distance

Q: Find the pressure Force=0.33 N Area=0.2 mm2

A: Given data : Force=F Area=A   Required: Pressure

Q: Determine time to cover distance 20 km with car travelling with speed of 15 km/hr

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

Q: The angle of incidence of a wave of a wave with angle of transmission 45 degree and the refractive…

A: Given value--- angle of transmission = 45 degree.  n1 = 2 . n2 = 1.3 . We have to find--- angle…

Q: 400mm 600mm TALN 6kN a) Calculate the force, FAB at point AB.

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Q: End A of the bar AB in the figure (Figure 1) rests on a frictionless horizontal surface, and end B…

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Q: 11. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A spring with a rest length of…

A: The increase in Length x= 2.7 -0.7 = 2 m Spring constant  k= 90 N/m Potential energy = 1/2×kx²

Q: Find the value of distance Speed=21 m/s time=2 s

A: Given : Speed (v) = 21 m/s Time (t) = 2 s

Q: Find the current Voltage=22 V Resistace=6 Ohms

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Q: Water is streaming downward from a faucet opening with an area of 3.0 x 10-5 m². It leaves the…

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Q: van d

A: The ray diagram has been shown below. The object is between focus and center , therefore the image…

Q: 3. Calculate the reflection coefficient R for the finite potential well and confirm that R+T=1.

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Q: (II) A cube of ice is taken from the freezer at -8.5°C and placed in an 85-g aluminum calorimeter…

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Q: of sugar was dissolved in glass B and the laser light passes through it? When milk is added in glass…

A: solution of above problem is below:

Q: Three forces each 8 N are directed clockwise along the sides of an equilibrium triangle 5m on a…

A: a) yes, triangle is in equilibrium to linear motion , since net force is zero.  b) No, triangle is…

Q: Find the value of distance Speed=21 m/s time=2 s

A: Given data:  Speed (v) = 21 m/s Time (t) = 2 s Required: The distance (d)

Q: Find momentum mass=0.33 kg velocity=0.2 m/s

A: Given data : Mass=m Velocity=V   Required : Momentum

Q: Two resistors of the same resistance 52 are connected in a manner as shown below. Th connection will…

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Q: p is used to sup

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Q: A horizontal oscillator need 10 seconds to accomplish 2 oscillations. The angular frequency of this…

A: Given that              The number of the oscillation is (n) = 20              The time taken to…

Q: Find the impulse Force=0.621 N Time=0.23 s

A: Given  Force (F) = 0.621 N  Time(t) = 0.23 s  Impulse is given as : -  Impulse (J) = F×t

Q: Determine resistance Voltage=14 Volts Current=5 A

A: Ohm's law states that the voltage across a conductor is directly proportional to the current flowing…

Q: 6. What does negative sign indicate in the Faraday's law of electromagnetic induction formula?

A: According to Faraday's law , Induced emf in  loop is given as :-  emf (e) = - ∆Φ/∆t           Where…

Q: 1. Find the Peak Input Voltage for the half-wave rectifier that provides an average output voltage…

A: Average voltage,V=120V Let V' be the peak input voltage for the half wabe rectifier. So V=V'/π So…

Q: An object starts from rest and moves a distance d due to the presence of a net force F_net. If the…

A: Option- a is correct answer. Since change in kinetic energy produced work done . So E=F×d Where E =…

Q: orizontal thrust 'H' at support

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Q: Find the Horiz-

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Q: oscillator needs to accomplish 20 The angular of this oscillator is A horizontal 20 seconds…

A: The time required to complete one oscillation is called the time period. Here 20 oscillations occurs…

Q: Find momentum mass=0.33 kg velocity=0.2 m/s

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Q: A force of 209 N is applied to an object of area 3 m² find the Pressure?

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Q: A horizontal spring-mass system consists of a mass m 2 kg that is attached to a spring having a…

A: Given: The mass of the object is 2 kg. The spring constant is 500 N/m.

Q: A force of 80N [left] is applied to a desk making it slide 12 m [left] across the floor. How much…

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Q: What should be the relationship between the object density and fluid density in order for the object…

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Q: elastic cord is 64 cm long when a weight of 57N hangs from it and is 83 cm long when a weight of 82N…

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Q: Determine Distance covered by train in 1 hr Speed of train-80 km/hr

A: Given data :- time t = 1 hour = 1hr speed of train v = 80 km/hr