Is the nucleus positive or negative? The nucleus has an overall positive charge as it contains the protons. Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral. What is another name for the […]
When light waves move from passing through air to passing through a glass lens What happens to them?
When light waves move from passing through air to passing through a glass lens What happens to them? Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. […]
Can I put a 40W bulb in a 60W socket?
How can I lose my fat in one week without exercise?
How can I lose my fat in one week without exercise? 11 Proven Ways to Lose Weight Without Diet or Exercise Chew Thoroughly and Slow Down. Your brain needs time to process that you’ve had enough to eat. Use Smaller Plates for Unhealthy Foods. Eat Plenty of Protein. Store Unhealthy Foods out of Sight. Eat […]
What are the four factors that affect the strength of an electromagnet?
What are the four factors that affect the strength of an electromagnet? Factors Affecting the Strength of the Magnetic Field of an Electromagnet: Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through the core, the number of turns of wire on the core and […]
What is the product of KCl I2?
Can I turn my iPhone into a megaphone?
Can I turn my iPhone into a megaphone? Megaphone instantly transforms your iPhone or iPad into a microphone when you connect it to external speakers. With crystal-clear sound and easy setup, you can make yourself heard in minutes. If you’re using wireless speakers, upgrade to Megaphone Pro and pair your iPhone or iPad with your […]
What is relation between force and area?
What is relation between force and area? When a force is exerted on an object it can change the object’s speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area. Pressure can be found using the equation pressure = force / area. Therefore, a force acting […]
How do you find the velocity of an object?
How do you find the velocity of an object? Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time […]
What is the potential difference VB VA in the circuit?
What is the potential difference VB VA in the circuit? The potential difference VB – VA for the circuit shown in the figure is 24kV . Is the potential difference Va VB positive negative or zero? With increase in distance, potential due to point charge decreases. So, i) VA – VB is positive when charge […]