Physics
(a) Which electrical component protects the electric circuit in case of excess current and can also be used a switch ?
(b) Name the wire to which this electrical component is connected in an electric circuit?
Related Questions
What is 'SONAR'? State the principle on which it is based.
A lens forms an upright and magnified image of an object.
(a) Name the lens.
(b) Draw a labelled ray diagram to show the image formation.
The diagram in the figure given alongside shows the core of a transformer and its input and output connections.
(a) Is this transformer a step up or step down?
(b) State the material used for the core and describe its structure.
Out of the following metals A, B and C of specific heat capacities 900 J kg⁻¹ °C⁻¹, 380 J kg⁻¹ °C⁻¹ and 460 J kg⁻¹ °C⁻¹ respectively, which one will you prefer for calorimeter? Give reason.