A boat travels 30 km upstream in the same amount of time it takes to travel 60 km downstream in the same river. If the speed of the river is 4 km/h, what is the speed of the boat in still water?
From the given situation in the question above, let us assume that speed of the boat …
Two cars start at the same time from one point and move along two roads at right angles. Their speeds are 36 km/hr and 48 km/ hr respectively. After 15 seconds, what will be the distance between them?
There are two speeds given in the question, V₁ = 36km/hr V₂ = 48km/hr converting the…
A series LCR circuit with R = 20 Ω, L = 1.5 H and C = 35 µF is connected to a variable-frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?
The given data can be listed as, R = 20 Ω L = 1.5 H C = 35 µF RMS V = 200 Volt To find…
A charged 30 µF capacitor is connected to a 27 mH inductor. What is the angular frequency of free oscillations of the circuit?
Given data in the question can be listed as, Capacitance , C = 30 µF = 0.000030 F L …
Obtain the resonant frequency ω of a series LCR circuit with L = 2.0H, C = 32 µF and R = 10 Ω. What is the Q-value of this circuit?
Given data can be listed as, L = 2.0 H C= 32 µF = 0.000032 F R = 10 Ω. To get - Resona…
A 60 µF capacitor is connected to a 110 V, 60 Hz ac supply. Determine the rms value of the current in the circuit.
Given data in the question can be listed as, Capacitance , C = 60 µF = 0.000060 F RM…
A 44 mH inductor is connected to 220 V, 50 Hz ac supply. Determine the rms value of the current in the circuit.
Given data in the question can be listed as, Inductance , L = 44mH = 0.044 H RMS Volt…
A 100 Ω resistor is connected to a 220 V, 50 Hz ac supply. (a) What is the rms value of current in the circuit? (b) What is the net power consumed over a full cycle?
As per the question, we can list out the following data Resistance R= 100 Ω voltage …
Two cars A and B, are moving along a straight road in the same direction with velocities of 25 km/hr and 40km/hr respectively. What is the velocity of car B relative to car A?
Given data in this problem can be listed as, velocity of car A = 25km/hr velocity of c…
What is a perfect black body ?
A body that absorbs the entire radiation energy incident on it is called a…
Thermodynamics involved in a pressure cooker
Pressure cooker is a very common device used in cooking food by consuming …