An accumulator with e.m.f. 12 volt and internal resistance 1 2 is connected to a potentiometer wire through resistance 50 2 in series. The potentiometer wire has length 4 m and resistance 9 2. A Leclanche cell can be balanced at 3.2 m length of potentiometer wire. Find the e.m.f. of the a wire of Leclanche cell.
Q: Ex. 2: A vibrating tuning fork emits sound waves of period 2 x 10 3 second and wavelength 0.7 m in a...
A: To find-Velocity of sound in air (V)=?Given-Periodic time (T)=2×10-3 secWavelength(λ)=0.7 m
Q: Â = d/dx %3D Â = d?/dx² %3D Â = x
A: Since we answer up to 3 subparts we will answer the first three. Please resubmit the question and sp...
Q: A celestial object is observed to have a continuous spectrum that peaks at a wavelength of 0.0000023...
A: The celestial object can be modelled as a blackbody and hence satisfy krichoff's laws of radiation.
Q: In a RLC circuit we have the following in series: a one-and-a-half ohm resistor, a 12 mH inductance ...
A: "Since you have asked multiple questions, we will solve the first question for you as per Bartleby G...
Q: A 18,000 kg aircraft is lifted to a height of 12 m. How much potential energy does the aircraft gain...
A: Given that,Mass of aircraft : m = 18000 (kg)Height : h = 12 (m)Power : P = 15000 (W)Here we need to ...
Q: Speakers in stereo systems have two color-coded terminals to indicate how to hook up the wires. If t...
A: When two or more waves meet at a point they superimpose, specifically the disturbance of the waves a...
Q: :If the resultant force acting on the bracket is directed along the positive y axis, determine the m...
A:
Q: Have a look at the diagram below. Q1 Q2 B Q3 2X +
A: The three given charges are Q1, Q2 and Q3. Q1 and Q3 are positively charged, while Q2 is negatively...
Q: 2.] Ship B is due north of ship C. Ship A bears 102.3° from C with a distance of 27.4 nmi. It was al...
A: Trignometry is a mathematical concept that gives the relation between the length of the sides of a t...
Q: F1 15KN 4m F2
A:
Q: 4. An electrically neutral balloon is rubbed against a piece of animal fur and acquires a charge of ...
A: Given that,Charge, q=-0.311μC=-0.311×10-6 CTime t=1.37 sec
Q: The lowest value of the transmitted power of a pulsed radar signal to detect a target area of 10 on ...
A: Given: Crossectional area of antenna, σ=10 m2 Distance, D=35 Km Frequency, ν=120 GHz Gain, G=34 dB R...
Q: 12Ω 16 Ω 9Ω. 6Ω 4Ω
A: To solve this circuit easily we make certain considerations as follows, 1) Consider this system is c...
Q: Ex. 72 : In biprism experiment the distance between two virtual images of the slit is 0.1 cm and the...
A: To find-Wavelength of light (λ)=?Given-Distance between two images of slit (d)=0.1 cm=1×10-3mDistanc...
Q: A total charge Qis uniformly distributed through-out a sphorical volume of radius a. Which of the fo...
A: Given, charge on the sphere is, Q the radius of the sphere is, a DImensional analysis, Dimension o...
Q: Calculate the ionization fraction for r ionized hydrogen gas in a box at P=: and T=15 000K.
A: Given: P=10 Pa T=15000 K
Q: Q1. What is the electric potential of a dipole on the y-axis at large distances? 1 qd 1 qd 1 qd (b) ...
A:
Q: A bar of silicon is doped with a boron concentration of 1016 cm³ and assumed to be fully ionized. It...
A:
Q: Four particles A, B, C and D are distributed in four energy levels E, =0 , E, =ɛ E2 =2ɛ E, =38 It is...
A: Four particles are distributed in four energy levels, The four particles are distinguishable particl...
Q: The shaded area shown in (Figure 1) is bounded by y 1 axis, line y = 5.12 m and the curve y(x) = 64 ...
A: Given;
Q: #2. Describe the changes in velocity at various points for a mass in simple harmonic motion
A: Simple harmonic motion is a periodic motion defined by an object, when it attached to some spring . ...
Q: An object is placed 20 cm from a 20-cm-focal length converging lens. Calculate the magnification.
A: Object position u = - 20 cm Minus sign indicates that the object is placed left side of the lens. Fo...
Q: How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40.0 m ...
A: Given, Wavelength is λ = 40.0 m speed of propagation is v = 5.0 m/s Time is t = 1 minute t = 60 sec...
Q: Four particles A, B, C and D are distributed in four energy levels E, =0 , E, =ɛ Ez =28 E3 =38 It is...
A:
Q: Choose all the expressions that are correct for the following diagram. If none of them are correct, ...
A:
Q: Q. 27 One thousand small water droplets of equal size combine to form a big drop. The ratio of the f...
A:
Q: Which type of current charges smartphones, AC or DC, or both? explain also why
A: We know that one power supply unit is mounted in every electronic circuit which converts the AC main...
Q: Ex. 73 A tuning for C produced 6 beats per of frequency second with a fork 340 Hz. When the prongs o...
A:
Q: ) What is the temperature of this obje
A: The problem is based on Weins law of radiation
Q: a perfect conductor, E = 0 everywhere inside, and all the charge resides on the surface even when ch...
A:
Q: Three identical charges Q are at the corners of an equilateral triangle of side L. The charges are r...
A:
Q: Ex. 10 : In Young's experiment interference bands are produced on the screen placed at 1.5 m, from t...
A: To find-(1)Fringe width (X)=?(2)Change in fringe width (X'-X)=?Given-D=1.5 md=0.15 mm=0.15×10-3mλ=65...
Q: all the quantities are in S.I. units. Calculate the Ex. 8: The equation of progressive wave is %3D r...
A: To find-(1) Wavelength (λ)=?(2) Frequency (n)=?Given-Y=0.2 sin 2πt0.08-x5
Q: FBD TOP ВOTTOM Figure 7-12
A:
Q: Which of the following conditions is not necessary for a sustained chain reaction ? A) Fast moving n...
A: Chain Reaction: A chain reaction occurs when neutrons generated during fission cause subsequent fiss...
Q: 2) The plot below is like the ones shown in class as examples of measurements of a bound electron's ...
A: Radius of an orbit is given by 0.529 n^2/Z angestrom Where n is quantum number and Z is atomic numb...
Q: A voltmeter has a resistance 30 2. What will be its reading when it is connected across a cell of e....
A: To Find: Reading on voltmeter (i.e. Potential difference) V Given Data: Resistance of voltmeter (R) ...
Q: Pendulum "A" is on Jupiter Pendulum "B" is on the Moon. The Moon has less gravity than Jupiter the p...
A: T=2πlg Where, T is the time period of a pendulum l is the length of a pendulum g is the acceleratio...
Q: Please derive the relation between effective refractive index nef and group index ng dneff Ng = Ness...
A:
Q: Position vs. Time Graph Worksheet 1) Look at the position vs. time graph below to answer the followi...
A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other ...
Q: A 126 N force is applied at an angle of 25.00 to a 8.50 kg block pressed against a rough vertical wa...
A: Given: Force,F=126NAngle,θ=250Mass of block,m=8.50kgAcceleration due to gravity,g=9.8m/s2
Q: 16-In Europe, 220 V is used instead of 120 V in America. 60 W European bulb in America If used, what...
A: Given that, Voltage in Europe, VE = 220 V Voltage in America, VA = 120 V Power in Europe, PE = 60 W...
Q: Q. 15 A potentiometer wire has length 2 m, and resistance 10 2. It is connected in series with a res...
A: To find-Potential gradient=?Given-Length (L)=2 mResistance (R)=10 ohmEmf (E)=2 VResistance of rheost...
Q: A tank is filled to a depth of 2 m with cooking oil (density: 920 kg/m³). The shape of the tank is a...
A:
Q: An air-insulated parallel-plate capacitor of capacitance Co is charged to voltage Vo and then discon...
A:
Q: Ex. 28 : When a capillary tube of radius 0.6 mmi is dipped into water, the level inside the capillar...
A: To find-Surface tension of water (T)=?Given-Radius of capillary tube (r)=0.6 mm=6×10-4 mHeight (h)=6...
Q: A pregnant woman experiences labor pains, so the husband decided that she will be brought to the nea...
A: The ratio of speed of car and speed of light is β=5060=0.833 Because this is a significant fraction...
Q: Consider a planetary atmosphere consisting of an ideal gas of atoms, each of mass m. The temperature...
A:
Step by step
Solved in 2 steps
