What is the magnitude of the electric field at a field point 2.0 m from a point charge 4.0 NC?
Answer Expert Verified The magnitude of the electric field is 9 N/C.
How do you find the magnitude of an electric field at a point?
The magnitude of the electric field E created by a point charge Q is E=k|Q|r2 E = k | Q | r 2 , where r is the distance from Q. The electric field E is a vector and fields due to multiple charges add like vectors.
What is the electric field strength at a point 30 cm from a charge Q 4.0 NC?
Charge Q acts as a point charge to create an electric field. Its strength, measured a distance of 30 cm away, is 40 N/C.
How do you find the magnitude of the electric field between two plates?
Since the field lines are parallel to each other, this type of electric field is uniform and has a magnitude which can be calculated with the equation E = V/d where V represents the voltage supplied by the battery and d is the distance between the plates.
What is the electric field intensity between the two plates?
The electrical potential difference between the two plates is expressed as V=Ed, the electric field strength times the distance between the plates. The units in this expression are Newtons/coulomb times meters, which gives the final units Joules/coulomb.
What is the electric field inside the capacitor?
Electric field strength In a simple parallel-plate capacitor, a voltage applied between two conductive plates creates a uniform electric field between those plates. The electric field strength in a capacitor is directly proportional to the voltage applied and inversely proportional to the distance between the plates.
Is the electric field inside a capacitor constant?
Answers and Replies. 1) No, the electric field from a single infinite plate is constant as well. That the electric field inside a plate capacitor is constant is only an approximation. This works for distances very close to the plates, and when you are far away from the edges of the plates.
How does a dielectric affect electric field?
Introducing a dielectric into a capacitor decreases the electric field, which decreases the voltage, which increases the capacitance. A capacitor with a dielectric stores the same charge as one without a dielectric, but at a lower voltage. Therefore a capacitor with a dielectric in it is more effective.
What is the relationship between electric field and voltage?
Work and Voltage: Constant Electric Field The electric field is by definition the force per unit charge, so that multiplying the field times the plate separation gives the work per unit charge, which is by definition the change in voltage.
Does higher voltage mean more current?
In a linear circuit of fixed resistance, if we increase the voltage, the current goes up, and similarly, if we decrease the voltage, the current goes down. This means that if the voltage is high the current is high, and if the voltage is low the current is low.
What is the formula for work done?
Scientifically Work done formula will be given as, W = F * d: In this case, the force exerting on the block is constant, but the direction of force and direction of displacement influenced by this force is different.
How do you calculate work done in an electric field?
When charges move in an electric field, something has to do work to get the charge to move. To move q, we apply a force to just barely overcome the repulsive force from Q. Let’s work it out: The amount of work done is force times distance, W = F ⋅ d W = F \cdot d W=F⋅dW, equals, F, dot, d .
How do you calculate work?
Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or Newton • meter (N • m). One joule equals the amount of work that is done when 1 N of force moves an object over a distance of 1 m.
What is transferred when work is done?
Work is the measure of energy transfer when a force (F) moves an object through a distance (d). So when work is done, energy has been transferred from one energy store to another, and so: energy transferred = work done.
How do you solve for powers?
Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in a unit called the horsepower.
How do you calculate work on a calculator?
Formula
- Work : W = Fd (work = force x distance)
- Force : F = W/d.
- Distance : d = W/F.
- Where, W =Work, F = Force, D = Distance.
How do you find weight with distance and work?
Work is the force exerted on an object times the distance over which the force is exerted: W = Fx, where W is the work in Nm = Joule. Work done to lift an object of mass m a height h: W = Fgh = mgh.
How do you calculate work angle?
Force can be calculated with the formula Work = F × D × Cosine(θ), where F = force (in newtons), D = displacement (in meters), and θ = the angle between the force vector and the direction of motion.
How much should a 5 3 female weigh?
Height and Weight Chart
| Height | Weight | |
|---|---|---|
| 5′ 3″ | 107 to 140 lbs. | 141 to 168 lbs. |
| 5′ 4″ | 110 to 144 lbs. | 145 to 173 lbs. |
| 5′ 5″ | 114 to 149 lbs. | 150 to 179 lbs. |
| 5′ 6″ | 118 to 154 lbs. | 155 to 185 lbs. |
What is my ideal weight for my age?
Weight and height guide chart
| Height | Weight | |
|---|---|---|
| 5ft 2″ (62″) | 104 to 131 lbs. | 136 to 158 lbs. |
| 5ft 3″ (63″) | 107 to 135 lbs. | 141 to 163 lbs. |
| 5ft 4″ (64″) | 110 to 140 lbs. | 145 to 169 lbs. |
| 5ft 5″ (65″) | 114 to 144 lbs. | 150 to 174 lbs. |
What is my ideal weight in kg?
Ideal body weight (men) = 50 kg + 1.9 kg for every inch above 5 feet. Ideal body weight (women) = 49 kg + 1.7 kg for every inch above 5 feet.
How can I lose 10kg?
How to Lose 10 Pounds in a Month: 14 Simple Steps
- Do More Cardio. Share on Pinterest.
- Cut Back on Refined Carbs. Cutting down on carbs is another simple way to improve the quality of your diet and further weight loss.
- Start Counting Calories.
- Choose Better Beverages.
- Eat More Slowly.
- Add Fiber to Your Diet.
- Eat a High-Protein Breakfast.
- Get Enough Sleep Every Night.
How can I lose 20 kgs?
Weight loss plan to lose 20 kgs –
- “Drink lots and lots of water — even when I am not thirsty. Staying hydrated as multiple health benefits and also aids weight loss.
- Cut 500 calories from my diet plan.
- Do cardio exercises — 5 days a week and strength training workouts for 3-4 days a week.
How can I lose 5 kgs in a month?
Weight loss: These five tricks will help you shed 5 kilos in 1 month without exercise
- Drink warm water in the morning.
- Never skip breakfast.
- Avoid or cut back on sugary drinks.
- Reduce tea/coffee intake.
- Skip the elevator.
Is losing 5 kg noticeable?
Though losing or gaining only a few kilos throughout the year is normal, but according to many studies, if you lose more than 5 per cent of your body weight in less than six months with no change in your diet and without any physical activity, it’s time to see a doctor.
Can walking 30 minutes a day help lose weight?
Physical activity, such as walking, is important for weight control because it helps you burn calories. If you add 30 minutes of brisk walking to your daily routine, you could burn about 150 more calories a day. Of course, the more you walk and the quicker your pace, the more calories you’ll burn.
How did Shehnaz Gill lose weight?
Shehnaaz said that reducing the quantity of food she ate helped her lose weight. “Trust me, I went in for a simple reduction in my eating habits. You can say that I cut off on my non-vegetarian food, chocolates and ice cream and nothing else. But besides that, let me explain how I ate because therein lies the catch.