A tungsten filament has a temperature of 20.50 degrees Celsius and a resistance of 500 ohms when taking normal working current. Calculate the resistance of the filament when it has a temperature of 25 degrees Celsius . Given the RTC at O degree Celsius is 0.00501 per

Q: The voltage sensitivities of Barium Titanate and Quartz are respectively 12 × 10-³ Vm/N and 15 ×…

A: Given, For Barium Titanate: Voltage sensitivity = 12×10-3 VmN Permittivity = 12.5×10-9 Fm   For…

Q: Two parallel wires made of copper are placed in air. The inductance of each wire is 0.9 µH/m with…

A: Two parallel wires made of copper are placed in air.  Total inductance L= 0.9uH/m What is the…

Q: * For the Photoflash unit, R1=5KQ, C=1500 uf R2= 120. The time required for the capacitor to fully…

A:

Q: A voltage-multiplier has a Vm = 60 V peak sinusoidal secondary voltage. During the positive…

A:

Q: QUESTION 3 E-05, PC-05. While testing of capacitor with the Multimeter it will show value of? will…

A: A Multimeter is an electronic measuring instrument that combines several measurement functions in…

Q: Match each type of transducer with the corresponding physical phenomenon, law, or property where it…

A: We are given with the following choices: Lorentz law Charge Faraday's law Ohm's law Capacitance…

Q: Half-wave rectifier loaded with R-L is fed with a 120 VAA 60 Hz source. 10 Ω load Find the…

A: The expression for the current in the half wave rectifier is given as:

Q: An alternating current was measured by a DC milliammeter in conjunction with a full-wave rectifier.…

A: Given: DC milliammeter reading, Idc=7.0 mA in conjunction with a full-wave rectifier To find: (a)…

Q: the non-inductive resistance of kelvin double bridge are set at 1000 each, the standard resistance…

A: Kelvin double bridge it's used to measure low resistance.  Resistance R= 1000 ohm Standard…

Q: The voltage sensitivities of Barium Titanate and Quartz are respectively 12 X 10-3 Vm/N and 50 X…

A: Given- Voltage sensitivities- For Barium Titanate - 12×10-3 Vm/N, For Quartz- 50×10-3 Vm/N,…

Q: The coil winding in PMMC meter is -1 small heavy large fine

A: Given  The coil winding in PMMC meter is

Q: Estimate thermal voltage for 30o C.

A: The thermal voltage (VT) is a very important quantity in semiconductor physics. It is dependent on…

Q: 3 CRI CR2 1. R3 2. R4 15V 1200 3000 R1 R2 800Q 4500

A:

Q: 0.5) A full-wave rectifier with L-C filter is shown in figure 3. If the resistance of the loa is…

A: According to the question we have to find the value of ripple factor.

Q: The symbol of iron core inductor is

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Q: The arc passes through the body of the insulator is known as O Puncture High current Flashover O…

A: We know that a puncture arc is a breakdown and conduction of the material of the insulator, This…

Q: types of electrodes in electric welding

A: Electrodes are used in order to join two metal pieces together by conducting the current through…

Q: 9. Which of the following statements about conductivity is correct? O Distilled water has a lower…

A: The conductivity is based on the presence of ions in the medium. If there are more ions present in…

Q: A barium titanate crystal has a thickness of 2 mm. Its voltage sensitivity is 12*10-3  Vm/N. It is…

A: Given, A barium titanate crystal having, Thickness, t= 2 mm Voltage sensitivity, g= 12×10-3 Vm/N…

Q: The resistivity of Cu at 0°C is 1.30×10-8 2m. The change in resistivity per degree Celsius is…

A: According to the question we have to find the value of resistivity of Cu.

Q: A capacitor of 1µF is charged to 100 volts and then disconnected from the power supply. A second but…

A: First calculate initial charge on the capacitor.  Now using initial charge calculate voltage across…

Q: A barium titanate crystal has a thickness of 2 mm. Its voltage sensitivity is 12*10-3 Vm/N. It is…

A: Given A barium titanate crystal having, Thickness, t= 2 mm Voltage sensitivity, g= 12×10-3 Vm/N…

Q: The Insulator has a very small energy gap ? True O False O

A:

Q: 5- Determine the mathematical expressions for current and voltage of capacitor following the closing…

A: The required parameters can be calculated by analysing the circuit at t=0 and time at steady state…

Q: A certain batch of copper wire was found to have a conductivity of 98% at 20°C. What is its…

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Q: The shunt conductance accounts for leakage currents flowing across O semiconductor O dielectric O…

A: The shunt conductance accounts for leakage currents flowing across...... Ans :- Insulators.…

Q: 4. With reference to the Paschen curve below, Breakdown voltage (V) 60 55 50 45 40 35 30 0.5 1.0 1.5…

A: Given For P = 0.1 torr       d = 20 cm For P = 0.025       d = 20 cm

Q: A 15kO NTC thermistor has a B value of 3450 between the temperature range of 30°C and 110°C. Its…

A:

Q: A point charge, Q1 = 40µC, is located at P, (2,4, 6) in free space, while Q2 = -6µC is at P2(2,…

A: Two charges and coordinator of the charges given.  Find the force on the charge Q2.  Find the point…

Q: How temperature effect conductivity? Explain with the help of following equation. m e'n7'

A: Ans) Conductive decreases as the temperature increases.

Q: An ammeter has been designed by indirect method with current ranges 1A, and 5A, if PMMC meter have…

A: An ammeter  design  If half scale current = 0.5mA Internal resistance Rm= 50 ohm What is value of…

Q: Question #1 : Determine the frequency of a time harmonic E-Field intensity causes a conduction…

A: Given data, The value of ∈r = 80 The value of σ = 3 S/m The value of ∈0 = 8.85×10-12 F/m The…

Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.