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A series LCR circuit with L= 400 mH, C= 20 nF and R= 250 Ω is connected to an
AC source of 65 V. Calculate the resonance frequency and Q of the circuit. What is
the current flowing through the circuit and voltage across the capacitor at resonance
frequency?
State, with reasons, whether the following statements are True or False.
1. Ripple factor of a center tapped full wave rectifier is greater than that of a bridge
rectifier, which uses four diodes.
2. Operational amplifier in non-inverting mode cannot amplifynegative signals.
3. IC LM380 is a small signal amplifier used to amplifythe voltage.
4. Largest decimal number represented by a 2-digit hex number is 99.
5. In a CRO sweep generator output is given to the vertical deflection plates.
State, with reasons, whether the following statements are True or False.
i) Ideal voltage source has infinite internal resistance.
ii) Transformer is a passive device hence it cannot increase the voltage.
iii) Field effect transistor (FET) is a current controlled device.
iv) Forward biasing of a semiconductor junction diode reduces its energy band gap.
v) Amplifier with common collector mode offers maximum voltage gain.
a sand falls vertically on a venter conveyor belt at a study rate of 400 grams per second. if the belt moves at 10 meters per second. find the force at the belt.
How much Ice @ 0°C must be mixed with 50.0g of water @ 75.0°C to give a final water temperature of 20°C?
A 15.0 kg object is moving with a velocity of 17.5 m/s. A force of -50.0 N acts on the object and its velocity becomes 3.20 m/s. What is the displacement of the object while the force acts?
An object exerts a force of 10n on an area of 2 square meter
A scout troop is practicing his orienting skills with map and compass. First they walk due east for 2.5km. Next they walk 45 degrees west of north for 7.3km. In what direction must they walk to go directly back to their starting point? How far will they have to walk?
a ball is thrown vertically upward with a velcity of 19.6m\s find? (i) the max height reached by the ball (ii) the time taken by the ball to reached the max height

Derive an expression for the tension, T, in the string as a function of the mass, M, of the glider, the mass, m, of the hanging mass, and g.