Where is town of Arcata situated?

The figure shown four situations in which charges as indicated (q gt 0) are fixed on an axis. How many situations is there a point to the left of the charges where an electron would be ib equilibrium?

The two pairs of wings in cockroach are situated in the segments.

Three boys A,B and C are situated at the vertices of an equilateral triangle of side d at t=0. Each of the boys moves with constant speed v. A always moves towards C and C towards A, At what time and where they meet each other?

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. (a) Estimate the line power loss in the form of heat. (b) How much power must the plant supply, assuming there is negligible power loss due to leakage? (c) Characterise the step up transformer at the plant.

Two circular coils can be arranged in any of the three situations as shown in figure. Their mutual inductance (M) will be ..

What is the function of receptors in our body ? Think of situations where receptors do not work properly. What problems are likely to arise ?