Current Electricity and Electrical InstrumentHard
Question
A wire has a non-uniform cross-section as shown in figure. A steady current flows through it. The drift speed of electron at points P and Q is vP and vQ
Options
A.vP = vQ
B.vP < vQ
C.vP > vQ
D.data insufficient
As A ↑ so vd ↓ ⇒ vP > vQTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The cell has an emf of 2V and the internal resistance of this cell is 0.1Ω, It is connected to a resistance of 3.9&...The net resistance of a voltmeter should be large to ensure that : -...A capacitor with charge Q on it is connected to an inductor L as shown in diagram at t = 0. When the switch is flipped f...A voltmeter connected in series with a resistance R1 to a circuit indicates a voltage V1 = 198 V. When a series resistor...In a potentiometer arrangement, a cell of emf 1.25V gives a balance point at 35.0 cm length of the wire. If the cell is ...