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Two conductors have the same resistance at 0∘C but their temperature coefficient of resistanc are α1andα2. The respective temperature coefficients of their series and parallel combinations are nearly
12
Nov
Two conductors have the same resistance at 0∘C but their temperature coefficient of resistanc are α1andα2. The respective temperature coefficients of their series and parallel combinations are nearly Two conductors have the same resistance at 0∘C but their temperature coefficient of resistanc are α1andα2. The respective temperature coefficients of their series and parallel combinations are [...]
A progressive wave in a medium is represented by the equation y=0.1sin(10πt−5/11πx) where y and x are in cm and t in seconds. The wavelength and velocity of the wave is
12
Nov
A progressive wave in a medium is represented by the equation y=0.1sin(10πt−5/11πx) where y and x are in cm and t in seconds. The wavelength and velocity of the wave is A progressive wave in a medium is represented by the equation y=0.1sin(10πt−5/11πx) where y and x are in cm and t in seconds. The [...]
A resistor ‘R’ and 2(μ)F capacitor in series is connected through a switch to 200 V direct supply. A cross the capacitor is a neon bulb that lights up at 120 V. Calculate the value of R to make the bulb light up 5 s after the switch has been closed. (log 102.5 = 0.4)
12
Nov
A resistor ‘R’ and 2(μ)F capacitor in series is connected through a switch to 200 V direct supply. A cross the capacitor is a neon bulb that lights up at 120 V. Calculate the value of R to make the bulb light up 5 s after the switch has been closed. (log 102.5 = 0.4) [...]
If the wire is stretched to make it 0.1% longer, its resistance will
12
Nov
If the wire is stretched to make it 0.1% longer, its resistance will If the wire is stretched to make it 0.1% longer its resistance will November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Identify the alloy containing a non-metal as a constituent in it (a) Invar (b) Steel (c) Bell metal (d) Bronze
12
Nov
Identify the alloy containing a non-metal as a constituent in it (a) Invar (b) Steel (c) Bell metal (d) Bronze Identify the alloy containing a non-metal as a constituent in it (a) Invar (b) Steel (c) Bell metal (d) Bronze November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The figure shows an experimental plot discharging of a capacitor in an RC circuit. The time constant pie of this circuit lies between :
12
Nov
The figure shows an experimental plot discharging of a capacitor in an RC circuit. The time constant pie of this circuit lies between : The figure shows an experimental plot discharging of a capacitor in an RC circuit. The time constant pie of this circuit lies between : November 12, 2020 Category: Uncategorised (JEE Advanced [...]
A longitudinal wave is represented by x = x0 sin2π(nt − λ/π ). The maximum particle velocity will be four times the wave velocity if
12
Nov
A longitudinal wave is represented by x = x0 sin2π(nt − λ/π ). The maximum particle velocity will be four times the wave velocity if A longitudinal wave is represented by x = x0 sin2π(nt − λ/π ). The maximum particle velocity will be four times the wave velocity if November 12, 2020 [...]
Method used for obtaining highly pure silicon used as a semiconductor material is (a) Oxidation (b) Electrochemical (c) Crystallization
12
Nov
Method used for obtaining highly pure silicon used as a semiconductor material is (a) Oxidation (b) Electrochemical (c) Crystallization Method used for obtaining highly pure silicon used as a semiconductor material is (a) Oxidation (b) Electrochemical (c) Crystallization November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Assertion : Coke and flux are used in smelting. Reason : The phenomenon in which ore is mixed with suitable flux and coke is heated to fusion is known as smelting.
12
Nov
Assertion : Coke and flux are used in smelting. Reason : The phenomenon in which ore is mixed with suitable flux and coke is heated to fusion is known as smelting. Assertion : Coke and flux are used in smelting. Reason : The phenomenon in which ore is mixed with suitable flux and coke is [...]
The equation of a progressive wave for n wire is Y= 4sin[ 4πt – 0.04x + π/3 ] where x is in metre and t is in second. The velocity of the wave is
12
Nov
The equation of a progressive wave for n wire is Y= 4sin[ 4πt – 0.04x + π/3 ] where x is in metre and t is in second. The velocity of the wave is The equation of a progressive wave for n wire is Y= 4sin[ 4πt - 0.04x + π/3 ] where x is [...]