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1 A wire of diameter d, length l and resistivity ρ forms a circular loop. A current enters
and leaves the loop at points P and Q as shown in the Figure. Show that the resistance R of
the wire is given by the expression
a wire of length 62.0cm and mass 130.0g is suspended by a pair of flexible leads in a magnetic field of 440mt. find the magnitude and direction of the current in the wire required to remove the tension in the supporting leads
Write down relationship between electric field and potential.
Notes on physical significance on Maxwell third equation.
A mass spectrum is used to separate two isotopes of uranium with masses m1 and m2 where m2>m1.the two types of uranium atom exit an ion source S with the same charge of +e and are accelerated through a potential difference V.the charged atoms then enter a constant,uniform magnetic field B .of r1=0,5049 m and r2=0,5081 m.what is the value of the ratio m1/m2
The path of an electric current through a human body when the right hand is in good contact with high voltage conductor, such a power cable, and the right foot is in good contact with the ground. The numbers gives the resistance of the body parts in ohm's (assume that the current punctures the skin, so the skin resistance is zero.1 _ what is the net resistance of the body? 2- what is the current if the potential at the hand is 600 kv? 3- what would be the resistance and the current if instead at the hand and foot, the body made contact with the cable at the shoulder joint and with the ground at the middle of the thigh? No of resistance from the hand up to the shoulder and down to the foot respectively 365 ohm 150 ohm 137 ohm 18 ohm 70 ohm 195 ohm 445 ohm ( I hope that I can send a photo of the body)
Draw the circuit diagram for operational amplifier used as an inverting amplifier. Obtain the relationship between it's input and output voltage
Find current in circuit when 12V is attatched at 2ohm resistance.
A current of 6A is flowing at 220V in the primary coil of a transformer.If the voltage produced in the secondary coil is 1100V and 40% of power is lost then the current in the secondary coil will be:
A battery of emf 24 volt and internal resistance r is connected to a circuit having 2 parallel resistors of 3 ohm and 6 ohm resistor connected in series with 8 ohm resistor.the current flowing in 3 ohm resistor is 0.8 A.calculate internal resistance and terminal pd.