12. Give two examples of electrical devices that are based on transistors.

Q: 15. R 전자석은 저항과 직렬로 연결된 인덕터로 생각할 수 있다. 유도 계수 L=12.0 H 와 저항 R-4.00 요 울 가진 큰 전자석이 24.0 V의 배터리와 스위치에 그림과…

A: Write the variables with the given values.

Q: 12. Calculate the center of mass of a 4 m long aluminum bar with cross-sectional area of 4 cm x 4 cm…

A: Given Data:  It is given that the length of the uniform bar is, L=4 m.  Axis of rotation is located…

Q: 2. A playground is on the flat roof of a city school, 6.00 m above the street below. The vertical…

A:

Q: 9 and 10. Thanks.

A: 9.The equation for dot product

Q: h power (E

A: Given: Surface area of Ashcraft is 1.9 m2 Emissivity is 1 Temperature is 37oC or 37+273=310 K

Q: Use the data of this table to find the point between Neptune and the Sun at which an object can be…

A: We have mass Sun M1=1.991*1030kg, mass of Neptune M2=1.03*1026kg and distance between the Sun and…

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: a) By using the relation of work done in the form of volume charge density, calculate the energy…

A:

Q: The figure shows a cube with a -9.08-nC point charge at each corner. If the cube has sides of length…

A:

Q: Two straight long wires carry currents I and 31 in the same direction. Where is the position where…

A: Magnetic field is a vector quantity.if two equal and opposite magnetic field act at a point net…

Q: A scientist tried to launch an experimental rocket in vertical direction. The tracking device of the…

A: (a) Let u denotes the velocity of the rocket when the engine shut down, h denotes the height of the…

Q: The ear canal resonates like a tube closed at one end. (See the figure.) If ear canals range in…

A:

Q: 6. A 60 mL flask is filled with mercury at 00C. When the temperature rises to 800C, 1.47 g of…

A: Volume of flask: V = 60 mL = 60 x 10-6 m3 Initial temperature of mercury: TI = 0oC Final temperature…

Q: A common emitter amplifier has a voltage gain of 50, an input impedance of 100 2 and an output…

A:

Q: A student examining a flashlight observes that it uses a traditional incandescent light bulb. The…

A: We know, P=VII=PV

Q: 18. The necessary conditions for the equilibrium of an object is a) ΣF=0 and Στ0 b) ΣΤ= 0 and Σ Ιω-0…

A:

Q: 3. Look at the image below. What you see is bullet of mass 0.030 kg moving horizontally straight…

A: Given: Bullet mass: Mass of wooden block: Distance of swing: Length of string:

Q: The compressions and rarefraction that make up a sound wave traveling through the air are…

A: Given : The compressions and rarefractions that make up a sound wave traveling through the air are…

Q: 3. The drawing in Fig. 3 shows a 25.0 kg crate that is initially at rest. Note that the view is one…

A: Friction.

Q: 11) What is the current in a 5 Ohm resistor due to a potential difference of 20 V? omb bas obutingem…

A: Write the given values with the suitable variables. R=5 ohmV=20 V Here, R is the resistance and V is…

Q: P-400 20018 30

A: From the question, it is given that- Weigh of object : mg = 200 lb Force applied on object: F = 400…

Q: Two large rectangular aluminum plates of area 140 cm² face each other with a separation of 3 mm…

A:

Q: 17. A piece of number 10 aluminum wire has a diameter of 2.59 mm. How many meters of number 10…

A:

Q: You drop a 10 Ib bowling ball and .1 lb piece of paper with air resistance. Which object will hit…

A:

Q: Write down the physical significance of Poison Equation and solve the Laplace's equation from poison…

A: we know, the electric field (E) is related to charge density by the relation            ∇.E=ρε0…

Q: A 50 eV electron is. trapped between electrostatic walls 200 eV high. How far does its wave function…

A:

Q: A series circuit connected to a 50 V battery has R1 = 30 Q and R2 = 25Q, %D calculate for: a) Total…

A:

Q: Light bulb 1 operates with a filament temperature of 2500 K, whereas light bulb 2 has a filament…

A: T1=2500k. T2=1900k.

Q: Gram is the fundamental unit of mass in SI system

A: SI base unit of mass is kilogram.It is represented by letter Kg.

Q: 7. "The wider the road, the more cars can pass through". Which of the following factors affecting…

A: We need to tell which factor affecting the resistance fits the given analogy.

Q: The magnitude of the magnetic field 47 cm from a long, thin, straight wire is 6.8 µT. What is the…

A:

Q: 1. Point charges of 5.00 µC (micro coulombs) and -3.00 µC are placed 0.250 m apart. Where can a…

A: Q1 = 5 × 10-⁶ C Q2 = - 3×10-⁶ C  d = 0.250 m

Q: 3. Determine whether the corresponding system is linear, time invariant and causal. Show block…

A:

Q: A flux of 25 X10^5 Maxwell links with a 1500 turn coil when a current of 3 A passes through the…

A: Given,ϕ=25×105 WbN= 1500I= 3AA) Inductance, L=NϕlL= 1500×25×1053= 1250×106 HL= 1250×106H

Q: 4 6. 7 8. You are on the right side of a sled, pulling it to the right with 150 N of force. A friend…

A: Since there are three forces acting in horizontal direction namely 150N towards right , 200N towards…

Q: Every action has an equal and opposite reaction" is newton's second law

A: " Every action has an equal and opposite reaction " is a Newton's third law . Hence given statement…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.