The answer is B, as more lights are added to the circuit the voltage to each decreases
Answer:
Answer: The dark patch formed due to obstruction of light rays by an opaque object is called a shadow. ... A shadow is formed when an opaque object is placed in the path of light.
i am not sure of that
thank you
Explanation:
Answer:
5.01×10⁴ J.
Explanation:
Applying,
q = Cm....................... Equation 1
Where q = amount of heat needed to melt the ice, m = mass of the ice, C = specific latent heat of ice.
From the question,
Given: m = 150 g = (150/1000) kg = 0.15 kg, C = 3.34×10⁵ J/kg
Substitute these values into equation 1
q = (0.15×3.34×10⁵)
q = 0.501×10⁵ J
q = 5.01×10⁴ J.
Use the formula
Time = (distance) / (speed)
-- notice that the distance is given in km. Remember this when you write the speed. They should BOTH be in km it BOTH in meters.
-- for the speed, don't get distracted by the idea of 'music'. It's being sent to us by radio, so use the speed given for light/radio.
Answer:
a) No-Load Current will increase
b) The magnetising reactance will increase
c) The secondary voltage will decrease
Explanation:
a) when an air ap is made in the transformer core then more current is required for the magnetisation of core. Hence, no-load current will incraese.
b) with the air gap the magnetomotive force increases. As a result, the angle between the voltage and current increases. Consequently, power factor decreases. Power factor always decreases when the reactive behaviour of circuit incraeses. Hence, Magnetisation reactance will increase.
c) Secondary voltage decreases due to air gap. Therefore, it is said that with the air gap the efficiency of the transformer decreases.