Which of the following is incorrect for displacement current

A logic gate whose output will be in logic 0 state only, when all inputs are in logic 1 state is called

A square loop of wire 2.2 cm on each side contains 2 turns and has a total resistance of \(0.0002\ \Omega\). It is located 22 cm from a long straight current carrying wire. If the current in the straight wire is increased at a steady rate from 20 A to 50 A in 5 s, determine the magnitude of the current induced in the squared loop.

The inductance in a coil plays the same role as

In an experiment with sonometer a tuning fork of frequency \(256 \mathrm{~Hz}\) resonates with a length of \(25 \mathrm{~cm}\) and another tuning fork resonates with a length of \(16 \mathrm{~cm}\). Tension of the string remaining constant the frequency of the second tuning fork is

A body of mass \(5 \mathrm{~kg}\) at rest is rotated for \(25 \mathrm{~s}\) with a constant moment of force \(10 \mathrm{~Nm}\). Find the work done if the moment of inertia of the body is \(5 \mathrm{~kg} \mathrm{~m}^2\).

Two metal spheres, one of radius \(\dfrac{R}{2}\) and the other of radius \(2 \mathrm{R}\) respectively have the same surface charge density They are brought in contact and separated. The ratio of their new surface charge densities is

Choose the correct metal/ ion from the brackets which ..........
A. has chemical reactivity similar to that of the first few members of the Lanthanoids \((\mathrm{Zn}, \mathrm{Ca}, \mathrm{Fe}, \mathrm{Cu})\).
B. has stable \(4 \mathrm{f}^7\) electronic configuration, but acts as a strong reducing agent and converts to \(\mathrm{M}^{3+}\) state. \(\left(\mathrm{Eu}^{2+}, \mathrm{Ce}^{2+}, \mathrm{Pr}^{2+}, \mathrm{Dy}^{2+}\right)\)
C. is a colorless ion \(\left(\mathrm{Tm}^{3+}, \mathrm{Lu}^{3+}, \mathrm{Gd}^{3+}, \mathrm{Sm}^{3+}\right)\).
D. shows stable +2 oxidation state and is diamagnetic \((\mathrm{Ce}, \mathrm{Sm}, \mathrm{Ho}, \mathrm{Yb})\)

Out of 10 given point, 3 are collinear. How many different straight line can be drawn by joining any 2 points from those 10 points?

Which one of the following coordination compounds will exhibit both geometrical and optical isomerism?

A capacitor of \(2 \mu \mathrm{~F}\) is charged as shown in the figure. When the switch \(S\) is turned to position 2 , the percentage of its stored energy dissipated is

Advika chooses one of three scarves every morning: Red, Blue, or Green.
• The probability she chooses Red is 20%.
• The probability she chooses Blue is twice the probability of choosing Red.
• On the remaining days she wears a Green scarf.
Once a scarf is chosen, she decides whether to wear a Hat (H) and Sunglasses (S). These choices are independent of each other but depend on the scarf colour:

Scarf colour	P(H)	P(S)
Red	0.5	0.8
Blue	0.4	0.5
Green	0.1	0.5

Advika is spotted outdoors wearing both a Hat and Sunglasses. What is the probability that she is wearing the Red scarf?

A block of metal A is connected in series with another block of metal B such that the two metal blocks have the same area of cross sections. The thermal conductivity of metal A is K and the free end of metal A is at \(80^{\circ} \mathrm{C}\). The temperature of the interface is \(60^{\circ} \mathrm{C}\) and the free end of metal B is at \(20^{\circ} \mathrm{C}\). Assuming the two metals have the same thickness, the conductivity of metal B is: