Fluids
How does increasing the number of loops in an inductor coil affect the self-inductance?
No effect, as only the current carrying through the coil affects self-inductance, not the number of loops.
It stays the same since it depends only on the material properties of the coil.
It decreases because the additional loops reduce the overall magnetic field strength.
It increases due to more flux linkages per current change.
What effect does adding a capacitor in parallel with another capacitor have on the total capacitance of an electrical circuit?
The total capacitance increases.
The total capacitance remains the same.
The total capacitance decreases.
The total capacitance becomes half of each individual capacitor's value.
What force is responsible for maintaining a circular path for an object moving with uniform circular motion?
Centripetal force
Magnetic force
Gravitational force
Frictional force
What is the SI unit of pressure commonly used in fluid mechanics?
Joule (J)
Pascal (Pa)
Newton (N)
Watt (W)
A cylindrical tank contains oil over water with known densities; if total hydrostatic pressure measured at bottom does not match sum of pressures calculated independently from each liquid layer’s height-density product, what might explain discrepancy?
Equal height of oil and water columns cancelling each other’s pressure effects out
Faulty pressure sensor providing incorrect readings at tank bottom
Presence of another substance or force altering effective density or pressure distribution within tank
Inaccurate measurement of the oil or water density values
Which quantity must remain constant when applying Bernoulli's equation to streamline flow from one point to another in an ideal fluid?
Kinetic energy per unit mass
Potential energy per unit volume
Total energy per unit volume
Pressure alone
What is the primary effect of an increase in fluid speed on the pressure within the fluid according to Bernoulli's principle?
The density decreases.
The pressure increases.
The viscosity increases.
The pressure decreases.

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Which statement is correct regarding the relationship between force exerted by a gas and the volume it occupies?
Boyle’s law
Ohm’s law
Coulomb’s law
Hooke’s law
Which concept describes the pressure exerted by a fluid at rest being transmitted undiminished to every point in the fluid?
Boyle's Law
Pascal's Law
Gay-Lussac's Law
Charles' Law
Which formula represents the buoyant force acting on an object submerged in a fluid?